A look at the PENTAX K-3 Mark III high ISO and comparison to the full-fame Sony a7 III.

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  • Опубликовано: 29 ноя 2024

Комментарии • 111

  • @TheHybridShooter
    @TheHybridShooter 3 года назад +6

    3:10 you should not "try to keep the exposure settings more or less the same". You should use the same shutter speed + aperture and adjust ISO to match Sony exposure (you will have to use higher ISO on Pentax).
    Keep in mind that Pentax uses different ISO scale (SOS) than Sony (REI). The difference in actual sensitivity between these scales is about 1 EV, so if the A7 III and K3 III look the same at ISO 6400, it means that Sony is about 1EV cleaner in reality. It is the same thing with Fuji X-T4, which uses the same IMX571 sensor and SOS ISO scale. It also took me some to find out why X-T4 ISO performance seems to be magically good. Unfortunately, both X-T4 and K3 III are far behind A7 III if we account for ISO scale differences.

    • @alesreman3458
      @alesreman3458 3 года назад

      Pentax have different SOS ISO scale, similiar with sony.

    • @TheHybridShooter
      @TheHybridShooter 3 года назад

      @@alesreman3458 No, it is not similar to Sony. There is almost 1 EV difference.

    • @alesreman3458
      @alesreman3458 3 года назад

      @@TheHybridShooter source ?

    • @TheHybridShooter
      @TheHybridShooter 3 года назад

      @@alesreman3458 official REI / SOS specifications. Your source?

    • @alesreman3458
      @alesreman3458 3 года назад

      @@TheHybridShooter i'm aware of u fuji but u sony and pentax have different basic ISO than fuji? I would like to see the specifications that give ISO REI for sony, pentax, fuji because they can use slightly different chip variants.

  • @huxley309
    @huxley309 3 года назад +5

    Ok now I'm starting to get impressed. Pentax has always had a knack for understatement.
    Can't wait to get mine tomorrow.

    • @Tkarma77
      @Tkarma77 3 года назад +1

      Tomorrow?? Ordered mine a couple weeks back looking like 2 weeks away.. how u getting tomorrow?

    • @huxley309
      @huxley309 3 года назад

      @@Tkarma77 Uk and other areas seem to be getting a much earlier release than others.
      Least you'll know how good it is before your order goes out, I'm kind of buying blind here.
      Yes ambassadors have had theirs for nearly a month, but their hardly going to say anything bad about it.

    • @mitchkeller
      @mitchkeller 3 года назад

      @@Tkarma77 Mine is due for delivery today in the US.

    • @huxley309
      @huxley309 3 года назад

      @@mitchkeller Got mine right here

  • @MattBishopPhotography
    @MattBishopPhotography 3 года назад +13

    Great to see this comparisons. My findings with the k3 III WERE EXACTLY THE SAME

    • @AlbertSiegel
      @AlbertSiegel  3 года назад +1

      Thanks. At first I thought I made some mistake and had to triple check the data. I don't think I've ever been so careful to verify any information before posting. I'm still surprised at just how excellent the image quality is. I think this camera might just keep me around APSC as my preferred format a bit longer.

  • @starbase218
    @starbase218 3 года назад +7

    Question: did the shutter speeds for these exposures match up as well? ISO 3200 is not always ISO 3200. Some cameras smuggle more than others, so the actual ISO is lower than what the camera says it is.
    Personally, if this camera has about the same or better noise performance than a fullframe camera with similar sensor tech, then I would highly suspect the camera doing some kind of processing, as was done by the K-1 II as well, even on RAW files. If this is the case, and if you like it, then of course you get that "for free". But if you don't like it, if you have your own processing maybe, that you might be able to tweak, maybe it's not such a good idea? Either way, I'd say Pentax should allow you to turn everything off, and this mode should be used to compare things.

  • @KobieMC
    @KobieMC 3 года назад +16

    Very impressive. Pentax did state that they wanted to change the perception of APS-C vs Full Frame. Looks like mission accomplished.

    • @liveandletlift370
      @liveandletlift370 Год назад +2

      Sorry to disappoint you, but that is not the case. Pentax cameras are not more efficient in any way, the difference is caused by Pentax using different ISO scale than Sony (SOS vs REI). There is a comment from The Hybrid Shooter somewhere here explaining the situation.

    • @KobieMC
      @KobieMC Год назад

      ​@@liveandletlift370 I'm not disappointed in the least. The image quality from the K-3 Mark III at high ISO is very good. It maintains correct colors and sharpness without mushing the image. The processing that Pentax did with the accelerator chip is very well done. I wouldn't shoot over 6400 ISO on my K-3 where I have no issues shooting at 12,800 ISO on the K-3 Mark III.

    • @liveandletlift370
      @liveandletlift370 Год назад +2

      @@KobieMC I was replying to your original comment about accomplished mission to change perception about APS-C vs FF. That mission was not accomplished, you were just mislead by this video.

    • @KobieMC
      @KobieMC Год назад

      @@liveandletlift370 I know what you were replying to. Even Kerrick James (Longest standing Pentax Ambassador from the U.S) said when it comes to night photography, he'll pick the K-3 III over the K-1/II after shooting them back to back. I have the K-3 III and have compared it to the K-1 II. The K-3 III is as close as you'll get to the Fullframe experience in an APS-C body. Viewfinder, controls, grip, image quality. So no, I haven't been mislead by anything. And I've always been critical of Pentax when they miss the mark. BUT, I also will praise them when they get it right. And they got it right with the K-3 Mark III (especially now with Firmware 2.0).

    • @liveandletlift370
      @liveandletlift370 Год назад +1

      @@KobieMC you were misled. This video states that you are getting the same ISO performance as with A7 III which is absolutely not true. No, you are not getting FF ISO performance, difference between REI and SOS can’t be ignored.
      It is as far from FF as any other APS-C BSI camera in terms of ISO.

  • @thepirateshoots
    @thepirateshoots 3 года назад +4

    Hi ISO is not important. More important is how the camera feels in your hand. And I think, Pentax has done a good job here, as usual.

  • @ykhm9778
    @ykhm9778 3 года назад +8

    Pentax !!! Yeah, this will be killer ! Well come back Pentax !

  • @alkrevit4755
    @alkrevit4755 3 года назад +2

    I was somewhat disappointed with the ISO on my k3. You have gotten me very interested in moving to mark III. It's nice to get some unbiased info rather than the rants of the "cameraville guy" about this camera not having a tilt screen. That doesn't concern me and I couldn't do without my optical viewfinder. Thank you.

    • @hoosierdome8698
      @hoosierdome8698 3 года назад +1

      In 2021 not having a tilt screen is dumb. You lose customers and Pentax cannot afford to lose anyone.

    • @starbase218
      @starbase218 3 года назад

      Ok, so if a review is negative about something that doesn't concern you, it's biased?

    • @Alfredolunafoto1
      @Alfredolunafoto1 3 года назад

      @@hoosierdome8698 I've professionally working without a tilt screen and my customers are still with me ;)

    • @hoosierdome8698
      @hoosierdome8698 3 года назад

      @@Alfredolunafoto1 That good for you, it's a hobby for me and at 64 I'm DONE with kneeing or laying in the dirt to compose my landscape shot. That's all I'm saying I know lots of people don't care but for me it's a show stopper.

    • @Alfredolunafoto1
      @Alfredolunafoto1 3 года назад

      @@hoosierdome8698 I understand Brian. Everybody has different needs but I know a tilt screen can usually make things easier. Take care.

  • @ML-gb7cn
    @ML-gb7cn 3 года назад +3

    Thanks Albert, Very good comparison. This will likely have the best APS-C iq out there for a while, not the first time Pentax has set a benchmark in this respect, but to have the autofocus up to modern standards is fantastic icing on the cake.

  • @stephenfoster7149
    @stephenfoster7149 3 года назад +2

    Incredibly excited for my pre-order to get here!
    Thanks for posting Albert!

  • @lawrenceyu9382
    @lawrenceyu9382 3 года назад +3

    K3III is really a great camera, it is comparable with A7III on high ISO

  • @carlgarrard9710
    @carlgarrard9710 3 года назад +1

    Yep, high ISO is never Pentax brand weakness. Pentax just needs more modern lenses (emphasize MODERN), especially for action photography now. Faster focusing, and super quiet lenses. Without the support of Sigma or Tamron 3rd party, it's up to them to offer choice. They have plenty of older lenses, but not enough to keep up with the new AF system. The 55-300mm PLM is really the only choice for a really fast focusing (and quiet) lens to keep up with the new body and take advantage of the AF system to the fullest. The 70-210mm f/4 is just a rebadged Tamron, and that lens isn't the fastest focusing out there by far. SDM lenses are hit and miss, older tech as well. Decent but not as good as the camera is capable. Pentax would have bolstered more support had they introduced a new faster focusing lens alongside the K3 Mark III announcement. There is still time, make a roadmap announcement Pentax, show everyone you also cater to action photographers. Remember, photographers date cameras, but they marry lenses. :)

  • @angelodsouza1669
    @angelodsouza1669 3 года назад +1

    Thanks, Albert keep up your great work 🙌

  • @Trader-CL
    @Trader-CL 3 года назад

    Nice. Are both shot in RAW or JPG? Was noise reduction ON or OFF for both?

  • @PiDsPagePrototypes
    @PiDsPagePrototypes 3 года назад

    Those video shots are a Massive improvement - used to be, ISO 800 was the highest usable, but that was more a reflection of the limited bitrate used - what bitrate is Quicktime's Movie Inspector reporting on these clips?

  • @bigrobotnewstoday1436
    @bigrobotnewstoday1436 Год назад +1

    Living in Japan is like living in the Blade Runner universe. LOL

  • @howie_101
    @howie_101 3 года назад +1

    Thanks Albert. If it really is useable at iso 6400, 12800, 25600 then I'd call that a win. The KP was already exceptional. To me I could use iso 6400 on the KP. If the K3 III gets me to 12800 or 25600 I'll be more than satisfied.

  • @xmeda
    @xmeda 3 года назад +2

    OK, thank you for video. So results are bit better than K3/KP as expected with the BSI-CMOS "XT-3" sensor. ISO1600 ceiling for serious stuff. ISO3200 when downsized or less demanding. ISO6400 for emergency. So maybe one EV improvement above K5/K3. Sensors are not only about noise, there is always significant dynamic range drop with increased sensitivity. And even with advanced digital noise reduction co-processors those physical limits are still present :)

    • @AlbertSiegel
      @AlbertSiegel  3 года назад +2

      Yes, I see your point for fine art or ultimate clean. I mainly shoot for newspapers and magazines, so the final output is usually A4 or less. Even when I print at home, I never go above A3+. For me, as someone who sometimes likes grain in a photo, I find 12800 as my ceiling and above that fine a bit more for smaller prints.

  • @leehaze1
    @leehaze1 3 года назад +2

    Nice video. Thanks for sharing.

  • @PaulBaur
    @PaulBaur 3 года назад +1

    Thank you Albert!

  • @jimhood1202
    @jimhood1202 3 года назад

    Thanks for the video. Auto focus and high ISO? Well done, those are probably the two areas most people are interested in comparing with the competition. Seems like Pentax have really stepped up their game. It's been a long wait but looks like it was worth it. 😁

  • @DRTMaverick
    @DRTMaverick 3 года назад

    @Albert Siegel, I've got a Pentax *ist D and K20D that I've been using for the better half of the last decade and a half.... I haven't upgraded cameras since the K20D.
    Is this a worthy camera to upgrade so I can keep with Pentax? What should I consider, since I haven't had anything between to compare it to?

    • @AlbertSiegel
      @AlbertSiegel  3 года назад +1

      Hi DRTMaverick, the *ist D and K20D are fine cameras indeed, but you will find the K-3 Mark III to be a massive upgrade in every way. Very much worth the price considering how long you keep your cameras.
      Another fine option if you are looking for something more budget friendly is the KP, but it's just been discontinued and may not be easy to find.
      Either way you can't go wrong as they both have excellent image quality and performance surpassing some full-frame cameras from not that long ago.
      Feel free to ask if you have any other questions.

  • @rmgwheelsspokeslab.7767
    @rmgwheelsspokeslab.7767 3 года назад

    Watching the video with the new camera and some of your photos I can see Pentax seems to have kept the magenta reds and cold skin tones on this camera too. Wish they would have fixed them. I didn´t like that on the K3-II. What program allows you to see the pictures? maybe it only works with the included software yet?

    • @mitchkeller
      @mitchkeller 3 года назад +1

      Shoot DNG and no problems with Adobe.

  • @gergelynemeth8244
    @gergelynemeth8244 3 года назад +1

    Very informative video Albert. Great comparison, and impressive results from pentax. Thank you for the content

  • @DavidBriard
    @DavidBriard 3 года назад

    Thanks for your great video! One question regarding K-3III, Pentax featured new Fine Sharpness II mode which look interresting but I am not sure if its for RAW or only JPEG?

  • @wasabifoto
    @wasabifoto 3 года назад

    Thanks for this excellent comparison video.

  • @HR-wd6cw
    @HR-wd6cw 3 года назад

    Since the A7 III is a 24MP full frame sensor versus a 25MP APS-C sensor this really isn't a fair comparison. Maybe to a Nikon D7500 or CAnon 90D it might be but not to an A7 III. The Pentax K1 might be a better comparison to the A7 III (although the K1 is 36MP vs 24MP so still not quite an apples-to-apples comparison).
    A couple of other things to note: on the Pentax, f/8 on a crop sensor is more like the same as f/13 on a full frame. If you look at the detail in the tall building, by ISO 12,800 all texture (the floors on the building) are lost in the K3 III. Up to about 12,800 both are about the same, with variances in noise, but it seems the A7 III retains a bit more detail throughout up to about 204,800. By 204,800 the building on the side with the Pentax has lost almost all detail (and so has the tree). You have to look at the details and how they are impacted, especially at 204,800. The more detail you can retain the better becuase you will have to blur the image a bit to clean up the noise, so this is where I'd say that attention to details is important when comparing this.
    And to be honest at 3:52 You realy should shoot the same subject with both cameras.

  • @8bittim
    @8bittim 3 года назад +2

    Very cool. I ended up going with a panasonic lumix s5 rather than a pentax k3 iii, cheaper purchase overall for a used full frame body, kit lens and 4 batteries than just the body of the k3 iii. However I'm truly impressed with the low light capabilities this camera shows. Practically negates one of the major complaints of full frame vs a crop sensor. I do wish pentax success in the sales of this new camera

  • @zvonimirtosic6171
    @zvonimirtosic6171 3 года назад +5

    I knew this will happen, that the K3III will be more efficient than many 135 format cameras. Pentax engineers were quite right. The efficiency means achieving the same, or a similar visual performance using the smaller sensor surface. It is possible. I wrote several posts around about it, also on DPR, but which the DPR editors, for example, could not even understand. Like many others geeks who don't get what the light gathering in photography means, they preach fake science. (100% of geeks are under the impression that larger sensor means "more light", which is photographic nonsense.)

    • @liveandletlift370
      @liveandletlift370 Год назад +1

      Sorry to disappoint you, but that is not the case. Pentax cameras are not more efficient in any way, the difference is caused by Pentax using different ISO scale than Sony (SOS vs REI). There is a comment from The Hybrid Shooter somewhere here explaining the situation.

  • @Nightshadeillusions
    @Nightshadeillusions 3 года назад

    So many comparisions about ISO. If you have good prime lenses ISO 800 is more than enough for everything. Concerts, shows, football, weddings, etc.

    • @warrenmerrill532
      @warrenmerrill532 2 года назад

      7:20am in a marsh under cover.... Got great action results with a burst at 25600 ISO from the K3III

  • @Camilos1998
    @Camilos1998 3 года назад +1

    Thanks for comparison :)

  • @RobertCorrigan
    @RobertCorrigan 3 года назад +1

    Very interesting. Cat amongst pigeons methinks.

  • @anorveaa
    @anorveaa 3 года назад

    The K3 III is much newer and since Ricoh baked the RAWs further it is expected to perform well and it is performing well. Having said that, I'm looking at my 4K monitor and I have no idea what you are looking at that makes the K3 III images look "cleaner". No way man. Yes they do look decent at high ISO but the FF does still look cleaner.

    • @AlbertSiegel
      @AlbertSiegel  3 года назад +1

      Different monitors I guess. I'm looking on a hardware calibrated graphics monitor at the original files. The results do look different on my phone though. Anyway, the difference is so minor and does not show in print, so not really a big deal either way. The point I want to make is that APSC users no longer have to have high ISO envy from full frame cameras.

  • @krzycsur9990
    @krzycsur9990 3 года назад

    Surprisingly good!

  • @maldidoGringo
    @maldidoGringo 3 года назад

    Thank you, finally a proper review of the new Pentax.

  • @EDHBlvd
    @EDHBlvd 3 года назад +2

    High iso testing in good light during day is useless. You need to test high iso in low light.

  • @mamolla1
    @mamolla1 3 года назад

    Good job !

  • @mikedimimd
    @mikedimimd 3 года назад

    How does it compare to the K1?

    • @AlbertSiegel
      @AlbertSiegel  3 года назад +1

      I can't say as I did not try to test it against one. From what I've read, they are pretty much even though some claim the new K-3 Mark III has an edge over the K-1. Still, I imagine if you resize a K-1 file to the same size of the K-3 III, that would make up for any difference in IQ if there is one.

    • @planetfun85
      @planetfun85 3 года назад

      @@AlbertSiegel ,pff, so k3 3> a7 3 , a7 3 > k1 , but k3 3 even with the k1. Ok...

  • @tasteapiana
    @tasteapiana 3 года назад

    I wonder how battery life per picture compares between these two. The APS-C of the K3iii might natively use less power but additional processing could add up to around the same power drain as a full frame sensor. If this is so, Pentax might be gearing up to build a true monster full frame next that, of course, would be a true power hog. I wouldn't mind that, a full frame in a standard body size that takes on the attributes of medium format could be very useful in the field. I'm totally not against lugging a power bank and converter around to never have to worry about framing again.

  • @odemata87
    @odemata87 3 года назад

    are the RAW files baked?

    • @AlbertSiegel
      @AlbertSiegel  3 года назад

      I'm not sure, but I did not see anything when looking at the RAW files that bothered me.

    • @leodellapietra
      @leodellapietra 3 года назад

      K1 ii has some noise reduction already in RAW, which was not present in K1, leading to minor loss of detail, at least for those who checked it. It's probable there is something similar also here. Check:
      www.dpreview.com/forums/thread/4280893

    • @howie_101
      @howie_101 3 года назад

      Look up Canon R5 and R6 if you are into baking.

  • @LaisvaFoto
    @LaisvaFoto 3 года назад +1

    To be fair, sony performed better at iso test. Had more details especialy in the trees and the ground.

    • @HR-wd6cw
      @HR-wd6cw 3 года назад

      Yes I think that's the important part here... better detail retention at higher ISOs. However, he should have tried to use the same image for both, as the scene is not evenly lit so it's not entirely a fair test. One side of the building is lit more than the other.

  • @palaneproductions7357
    @palaneproductions7357 3 года назад

    The A7mk3 is a early 2018 release at 1999u$d,its available new now for much less(1699) and add 140 for monster adapter compatible with Pentax.Very soon the Mk4 Sony will come and will probably be close or perhaps equal to the Pentax price.Buying Sony gives access to Sigma/Tamrons ever developing lens range along with Sony's as well.So the system becomes reasonably priced for a FF.A new Sony menu, state of the art AF are a given.I'll wait and see what 2K buys.

  • @jeanleguique4280
    @jeanleguique4280 3 года назад

    2:17 By looking at your child's shoes, does that camera still do line skipping ? In 2021 and for a 2k € flagship, really ???

  • @michaelangelo0305
    @michaelangelo0305 3 года назад +2

    I never understood all this high iso crap and why they are advertised with this "crazy feature"... who ever uses more than 16-20k iso? atleast to get a picture in some special cases...but numbers like 100 000 or more i mean the image then looks terrible either way

  • @gamingwithstand6886
    @gamingwithstand6886 3 года назад

    Try DXO PhotoLab or DXO PureRaw their deep prime is the best noise reduction in the world.

  • @slavo3436
    @slavo3436 3 года назад +1

    Wow great new Pentax is slightly better then 4year old camera... Amazing... But I have k1 and a73 and k1 did same was slightly better on iso which most people never use cos anyway it's crap...

  • @TheOdek1974
    @TheOdek1974 3 года назад +2

    It means DSLR's pentax is still alive. Some pretenders that dslr is already dead, i just laught it off for their foolishness and ignorance..

    • @UrSSuL
      @UrSSuL 3 года назад

      ^ Fanboy ^

    • @HR-wd6cw
      @HR-wd6cw 3 года назад

      Well, when two of the big three companies (Canon and Nikon) have essentially stopped DSLR production (or severely reduced it) we know the end is near for the DSLR. Pentax will probably be the only brand left selling DSLRs in the next 5 years.. But that is IF they are still around. Ricoh, for a few years now, has been trying to sell the Pentax line but to no success. First in 2017, and I think again in 2019....

    • @UrSSuL
      @UrSSuL 3 года назад

      @@HR-wd6cw let the fanboys buy the company and keep releasing the same models with insignificant improvements until they're basically gone (the fanboys) , so 10- 15 years max.
      Let them make a circle of fanboysm happy endings.

    • @TheOdek1974
      @TheOdek1974 3 года назад

      @@UrSSuL ignorant..

    • @UrSSuL
      @UrSSuL 3 года назад

      @@TheOdek1974 = fanboy?

  • @slammermx
    @slammermx 3 года назад

    Now my K3 ii looks so lame

  • @eagleeatsmonkey3621
    @eagleeatsmonkey3621 3 года назад

    problem is no body is buying dslr 2021 ... if this pentax sensor is 100x better than sony it is still useless as when nobdy is using dslr in 2021 ... better off using a film camera

    • @AlbertSiegel
      @AlbertSiegel  3 года назад +1

      Sales data for the camera industry says different.

    • @Alfredolunafoto1
      @Alfredolunafoto1 3 года назад

      Sounds like vinyl vs CD. Of course vinyl is better but appreciated mostly only by people with a good pair of ears.

    • @eagleeatsmonkey3621
      @eagleeatsmonkey3621 3 года назад

      you expect pentax to have a sales figure in 2021 ... you must be joking

    • @chiane1968
      @chiane1968 3 года назад

      Nobody is buying them because nobody is making them genius.

    • @salvadorgallardo6671
      @salvadorgallardo6671 2 года назад +1

      ya probe las sin espejo y no la verdad no me gusto!!! yo me quiero regresar a la DSLR.. y voy por esa Pentax !!! de regreso a pentax!! siiiiiii