- Видео 12
- Просмотров 22 078
Evan Dorsky
Добавлен 29 ноя 2009
Pentax 17 Teardown | A Look Inside the New Film Camera from Pentax
This is a long video, so I've broken it down into many chapters. Feel free to browse the chapter listings below and skip to any part that looks interesting:
00:40 Removing the bottom plate
00:56 Advancing the film
01:43 Investigating the film advance solenoid
02:55 Removing the rewind knob
04:09 Removing the advance lever
05:10 Removing the top plate
06:01 Discovering and disconnecting the FPC connector
06:28 Discovering and disconnecting the flash
07:45 Inspecting the top plate
08:08 Inspecting the camera body under the top plate
08:33 Discovering and explaining the focus zone selector
09:12 Removing the viewfinder
09:52 Safely discharging the flash capacitor
11:11 Deeper dive under the top plate
11:50...
00:40 Removing the bottom plate
00:56 Advancing the film
01:43 Investigating the film advance solenoid
02:55 Removing the rewind knob
04:09 Removing the advance lever
05:10 Removing the top plate
06:01 Discovering and disconnecting the FPC connector
06:28 Discovering and disconnecting the flash
07:45 Inspecting the top plate
08:08 Inspecting the camera body under the top plate
08:33 Discovering and explaining the focus zone selector
09:12 Removing the viewfinder
09:52 Safely discharging the flash capacitor
11:11 Deeper dive under the top plate
11:50...
Просмотров: 15 911
Видео
Ricoh GR10 Disassembly & Repair Guide for Common Issues
Просмотров 6455 месяцев назад
Trying to share all I've learned about the GR10 from my time working on it. This video addresses these common issues: 1. The lens barrel won't extend (the camera does not appear to power on) 2. The film advance is loud, slow, or makes clicking sounds 3. The date LCD cover has detached 4. The top plate buttons are mushy 5. The top LCD is misaligned in the top plate window CAUTION: Please watch t...
Pentax ME Super Top Plate Removal + Meter Calibration
Просмотров 1,7 тыс.5 месяцев назад
00:00 Disassembly 08:00 Meter calibration dial discussion 09:57 Reassembly Tools used: Spanner: japanhobbytool.com/collections/camera-repair-tool/products/camera-lens-opener-compass Rubber Openers: japanhobbytool.com/collections/camera-repair-tool/products/vacuum-pad-lens-opener (also available on Amazon)
How to Develop C-41 Film at Home, Step by Step with Details
Просмотров 12010 месяцев назад
Full materials list: www.notion.so/evandorsky/Home-Color-Film-Development-0dbfa8ab3a354437b2ff6e8dd14b8885 Film scanning guide: evandorsky.notion.site/DSLR-Film-Scanning-35f0b6216c064928a0c4849b2ad71e4f There are many great resources for how to load film into Paterson tanks and mix chemicals, so here I'm focusing just on the film development process itself. I prefer the Bellini C-41 chemicals, ...
Friends Playing Chamber Music 2.11.23 - Leichtling Quartet for a Dream Deferred
Просмотров 138Год назад
Justing Leichtling and her string quartet perform Justine Leichtling's original work, Quartet for a Dream Deferred, at Holy Innocents Episcopal Church in San Francisco. 00:00 Artist's talk 01:13 Quartet for a Dream Deferred Justine Leichtling and Marissa Chou, violins Reshena Liao, viola Greg Barber, cello Recording by Evan Dorsky and Callie Chappell
Friends Playing Chamber Music 2.11.23 - Lunar Noon
Просмотров 102Год назад
Michelle Zheng (Lunar Noon), Théo Auclair, and accompanying string quartet play some original works by Michelle Zheng at Holy Innocents Episcopal Church in San Francisco. 00:09 Artist's talk 03:03 Nisene Marks 07:44 The other shore 12:09 Audience participation explanation 12:27 With & without Michelle Zheng, vocals and keys Théo Auclair, cajon Brian Lach, violin 1 Karen Ouyang, violin 2 Evan...
2.11.23 - Brahms Cello Sonata No. 1 and Chen Awakenings - Rhapsody for Cello and Piano
Просмотров 139Год назад
At Holy Innocents Episcopal Church in San Francisco, Christian Selig and Andrew Chen perform Brahms's Cello Sonata No. 1 and Andrew Chen's original composition: Awakenings - Rhapsody for Cello and Piano. 00:00 Concert opening talk 01:58 Artist's talk Brahms - Cello Sonata No. 1 in E-minor, Op.38 03:26 I. Allegro non troppo 14:10 II. Allegretto quasi Menuetto 20:27 III. Allegro Andrew Chen - Awa...
Friends Playing Chamber Music 2.11.23 - Debussy String Quartet
Просмотров 186Год назад
The unnamed quartet - Airbnb on a G String? - performs Debussy's String Quartet at Holy Innocents Episcopal Church in San Francisco. Claude Debussy, String Quartet in G minor, L. 91, Op. 10 00:32 Artist's talk 03:09 I. Animé et très décidé 10:10 II. Assez vif et bien rythmé 14:46 III. Andantino, doucement expressif 22:37 IV. Très modéré - En animant peu à peu - Très mouvementé et avec passio...
Mamiya 645 Pro Frame Spacing / Film Advance Fix
Просмотров 1 тыс.Год назад
When I got my Mamiya 645 Pro TL kit, both 120/220 film backs would advance the film too far between exposures. As a result, the frames were spaced too far apart on the roll and I was getting 5-6 exposures per roll of 120 film instead of the expected 15. After many hours of troubleshooting, I figured out a simple fix (loosening the counter return spring) that fixed both of my film backs, which h...
Yashica-Mat EM Light Meter - How to use it
Просмотров 1,7 тыс.2 года назад
Quick tour of the Yashica-Mat EM light meter The Yashica-Mat EM sports an uncoupled selenium light meter that requires no battery. If you have one of these cameras, your light meter may still work! Check your Yashica-Mat light meter against a known accurate one before serious use there's no guarantee that these meters are accurate almost 60 years after production.
Spaceteam Arcade Gameplay
Просмотров 1928 лет назад
Olin Elecanisms 2016 The teaching team playing our arcade game
Signals and Systems Final - Music Visualization
Просмотров 29010 лет назад
For our Signals and Systems final project, we created an audio visualizer. We analyzed audio to extract the beats from a piece of music.
What you mean is digital film camera. Digital film roles are are similar like digital tape?
Thank you very much for this video! The lens on my GR1s just stopped working and I will try to fix it following the steps you described.
I recently bought a Ricoh GR10, I put a new battery in it and the lens comes out by itself but when I touch the Mode buttons on the LCD screen you can't see anything. I also don't see any info in the viewfinder. Although I have tried the flash and if it works just like the lens it focuses. I haven't put a roll on it because I don't know if I can take photos without choosing the values. Can I take photos myself?
Unfortunately LCD failure (both the top display and the viewfinder) is an extremely common problem with the GR10. If you can hear and see the lens focusing and the shutter opening, the camera is likely to work and take photos just fine in the default mode. I'd suggest running a test roll through it to make sure everything works - might be difficult without focus indicators in the viewfinder - and if it does, enjoy the camera!
Hi Evan, thank you for the great video and help! My second hand GR10 started to make funky things after only a few rolls.. The flash doesn‘t fire anymore, but with that I can live.. Unfortunately half of my rolls are empty, because the apeture blades wont open. Winding and focussing seem to work fine, but when i press the shutter the blades keep closed.. Any idea what to do?
If the shutter isn't firing consistently, likely the ribbon cable that connect the shutter to the body is failing. This ribbon cable bends every time you extend the lens, so it's bound to fail eventually. Happened to one of mine. This is the type of repair that instagram.com/awayrepairs/ can do, I haven't attempted it myself.
Would you say that the camera will survive a small rain shower or is every drop of water fatal?
Hey Evan, I'm having spacing/advancing issues, but I also have an issue where the advance knob locks up, and the only way to get to the 1 position is to fire the shutter and repeat this until it gets to the 1 position. I also noticed on the faulty film back it doesn't have a little pin sticking out, like the others. Would this be the culprit?
You've noticed that the pin on that film back is completely missing, or just not sticking out as far? If the pin is missing, the back is a lost cause and replacement is probably the best option in my opinion.
Beore calibracion must to clean the 2 fotocell ,in large time the glass of this is opaque ,and the pentaprism too. Un saludo from Spain. 😊
Sản xuất việt nam 😂
Looks great. I will get one soon. Thank you. ❤
Vielen Dank! Sehr interessantes Video! Tolle Kamera! Das einzige, dass mich vom Kauf abhält, ist das Halbformat. Ist es irgendwie möglich die Kamera von Halbformat auf Vollformat zu ändern?
Kudos from a working analog camera technician! I've been curious about the internals on this. Your hunch about the shutter is correct: The winder gearing should be charging the small shutter in the lens assembly (while also advancing the film) but exposure duration is controlled by the electronics, so the whole exposure system is mechanically-charged electronically-timed. Would love to see more camera repair content on youtube, keep it up!
Thanks for your kind words! My impression is the mechanically-charged electronically-timed shutter is fairly common among autoexposure analog cameras. However I am wondering if the Pentax 17 shutter is entirely electronic, with no coupling to the film advance, like the leaf shutter in a compact digital camera like the Ricoh GR. I'm thinking this for a few reasons: 1. Ricoh/Pentax could grab this part off the shelf, and this strikes me as a simpler design to achieve in 2024 2. The lens assembly seems quite independent from the film advance mechanism - it is almost floating above the rest of the camera - and I did not see any clear mechanical coupling into the body 3. I do not see any movement in the front or back of the shutter as I turn the film advance lever, suggesting that the shutter recharges on its own I have been thinking of making another video showing example photos from the Pentax 17 and exploring the lens in more detail - Pentax put in a full 8 blade aperture, which impressed me, and which I don't think has gotten enough coverage. But it might be a while. Thanks for watching!
Madre in chinese 😢😅😅😅😅😅😅descartable
Your video justify everything TKO said in the development story, definitely worth checking out too
after watching this, I don't feel it's overpriced anymore. my only gripe with this camera is that it should have gotten a sharper lens. even the original Pen F from the early 60's shoots sharper than the 25mm chosen for this
How have you assessed the sharpness of the lens? I scan film from the Pentax 17 with a 36MP DSLR and I have been pleased with the performance of the lens, even on TMAX 100 and E100. I've found it to be extremely sharp, at least as sharp as my Ricoh GR10. That said, I have not had the pleasure of using the Pen system about which I've heard great things.
It's a pity they didn't let you change one part and it becomes a regular 35mm format instead of half format ( can't take slides as it is).
I don't think this is how the variable resistors work in the ME Super. The bottom dial will adjust the speed of the shutter in auto mode while the upper resistor adjusts only the LED readout. Another way to put it is that the lower dial will change the speed and the LED that is lit up, while the upper will only change the LED that is lit up. This is confirmed in the service manual.
Thanks for the info! I looked up the service manual and I can see that you're right - I should have checked to see if a service manual was available before making this video. I'll pin your comment so hopefully viewers will see it.
can you make do a fix for the super back where the light meter always says over and after rotating to a different ISO it wants you to LT exposure
It sounds like your system might have dirty electrical contacts. Clean all the gold contact points on both the back and the body. Isopropyl alcohol (IPA, rubbing alcohol) is not technically proper contact cleaner, but in my experience it has worked just fine. Make sure the contacts are dry before testing. And while you're at it, you might as well clean the contacts for the prism on the body and prism side as well. The electronics in the back are extremely simple so it's unlikely the problem is internal. Please report back!
Thanks for the informative video
I'm very surprised that there is no chassis and that the casing indeed is an integral part of the structure. Looks like a very cheaply build camera, using injection mouldings to provide the strength of the camera, just like those cheap point and shoot cameras of the 90s. They must make a huge profit from each camera.
Someone has plenty of money to burn!
I am not sure if those fingers are for focusing. They might set the intensity of the flash. I don't have the schematics to verify this, but if the flash intensity is set by distance it can be used for flash fill photography.
maybe both, the fingers just send the binary data back to the motherboard, then the data might be used for both focusing and flashing. I think that makes sense
@@phangun13 It is possible that they are for both focusing and flash.
Great video. I'm about to get this camera and it's good to know that Pentax / Ricoh had repairability in mind when manufacturing this camera.
so cool thabk you
Wonderful video. It makes you appreciate even more the effort Pentax put into this camera.
Excellent and informative video, thanks. I'm pretty sure I could take one apart too. Getting it back together again would, in my case, be the tricky part 😂
Wonderful video. So many armchair yootoobers are saying this camera feels cheap and plasticky. If only they saw all the care in materials and design that goes into the 17.
Cool teardown! I am surprised to see point-to-point wiring made a comeback. I was anticipating flex cables and some JSTs, like modern cameras. Curious, is the top shell all plastic, or is it a plastic insert into a stamped metal cover? I bet they are using metalized plastic like fujifilm.
The top and bottom plates really do appear to be metal. The top plate has a plastic insert, but it looks like there's a nice thick metal layer there - you can see it pretty well around 5:49. Also, another commenter has suggested that bare soldered wires are still common for built-in flashes inside cameras. I haven't taken apart enough modern cameras to know myself, but Pentax may have decided to save BOM cost on high voltage connectors by just soldering a few wires instead. In a camera that must already require so much manual labor to build, I can see why they did this.
Interesting to see electronic shutter and mechanical film advance separated like that. Can't help to wonder if it would make possible to modify the camera for the Lomo style double exposure, at least in theory. Probably would require reprogramming some of the on-board logic. Thanks for the teardown and explanation, it was a joy to watch. Edit: turns out the double exposure is possible and actually quite simple using the film rewind button at the bottom as explained by Analogue Wonderland in their video.
Yes, double exposures should be easy on the Pentax 17, another benefit of the nice solid manual film advance mechanism! That said, in theory it would be possible to modify the firmware to allow multiple shutter releases before releasing the film advance solenoid. Quick double exposures would be effortless, but accidental ones would be extremely common!
If only they would have gone for a proper rangefinder or fully manual camera I would have bought it. But it does not seem to be a bad camera and I think there's plenty of people who'll have a ton of fun with it.
Fascinating. I’m not one to call that camera overpriced. Thank-you. The audio was very clear.
But did it still work once you put it back together? 😅🙂 Thanks, been waiting for a teardown
It did! And fortunately so, because I've been having a lot of fun shooting with it.
All plastic, but it looks the same I have on the DA*55/1.4, that doesn't feel cheap at all. The top and bottom plate might not be brass but they seem to get the job done and they look good. A lot of people for that price wanted a Pentax 67 III with a 105/2.4, and quickly point out a list of 40 years old used cameras that you can get with the same amount of money. What you are really paying here is the lens that looks like a little marvel from the shots I've seen, a good mechanical design that leans towards repairability, and metal parts where they matter (all the rewinding mechanisms and gears). Honestly I'm not at all a fan of the AF lens with manual presets, but my guess is that it shares part of the design with a future full AF camera, who knows, maybe full frame too?
I also prefer the Pentax 67... but gotta be realistic that it's a dead product. No new parts made and most likely you couldn't send it to Ricoh for repair, so gotta ask other specialists. On the other side, the Pentax 17 is a brand new product, still supported by the manufacturer.
@@anta40 I totally agree! The point is that people confront the price of old used stuff with the new one, and are completely unrealistic on how much new stuff should cost. Sure a brand new Pentax 67 would be possible, but it would cost at least 10 times as this 17
@@karellen00 Yeah, we mostly ignore inflation for convenience. I'm not a fan of half frame, but nevertheless this is an exciting news: a brand new 35mm camera. Hello Leitz, there's another player in town. Perhaps half frame format felt natural by younger folks who spend lots of time on smartphone 😬
This is such a good video, thanks a lot for your job!
did you determine a purpose for the washers on the front plate under the leatherette? assembly locators maybe?
I believe @mileskosik472 is on to something with his comment suggesting that the divets in the front plate are there to hide assembly features (like ejection pin marks), and the washers are there to make up for the gap from the divet to keep the front plate surface flat for the leatherette.
Well done! It can be repaired for next 10 years at least supported by PENTAX!
Looks like a very nice camera. I know from a couple of the photography blogs I like, they have been pessimistic of the camera initially and then found they liked it - especially when they saw the resulting images.
I really want that mat for lens repair... which one is it??
There are many such mats on Amazon, but this is the one in the video: www.amazon.com/dp/B07DGTJ463?psc=1&ref=ppx_yo2ov_dt_b_product_details
Thanks! I was also curious.
Production cost $65 worth $105.
Looks very well engineered. Hope sells well.
Proper respect! Thank you for sharing this.
So in theory it'd only be a small step to giving this camera interchangeable lenses. ??
I'm not sure about that - while the lens barrel cover comes off pretty easily, the lens itself is deeply integrated within the camera. However, since the Pentax 17 has a standard 40.5mm filter ring, I suppose it would be possible to augment the lens with say, closeup filters
Come on. Just a somewhat funny looking half frame camera. Not even half as small. A tear down? What’s so very special except the date of production? Who needs it, when you don’t want to make a statement to others?
Cool video, i have always wonder have do old cameras stamp the date on the film? I think it must a litle digital clock whith small ligh bulbs or small led in this old style camera and a lens for focusing maybe, and of course the clock built in mirror. I think that will be super interesting to make a video about.
I have wondered this myself, and a really excellent video answering your question from @AppliedScience already exists: ruclips.net/video/ezME4_xMMnk/видео.html I would love to see date stamping in a future camera from Pentax, especially since very few cameras with date stamp functions can count as high as 2024.
very helpful, thank you!
I very much appreciate this tear down video. I figured Pentax designed it to be serviceable when I noticed no use of Torx screws (or the like), only flathead or Philips. I own one and have so far shot about 8 rolls of 36 with it. Aesthetically, it has me taking pics that I probably wouldn’t take with any other type of camera. Of course I could say that about any camera, but there really is something special about the way it’s been designed. I’m not an engineer, just a picture taker, and I like the pictures I’m taking with it. I also don’t get all the vitriol being thrown at the pricing of this item. Camera companies aren’t charities and there are definitely more evil things to fund or support in this world than half-frame film cameras.
In my experience Torx (not security Torx or Pentalobe) has a much better grip and doesn't strip like Philips or require alignment like flathead/slotted.
Normal, non-security Torx was chosen (along with phillips) as the main screw type for the Framework laptop since it was less likely to strip than Phillips or Posidrive screws.
If you look at the rate of inflation since the Olympus 1/2 frame cameras were introduced, the price of the Pentax 17 is comparable.
Neat. Looks like a great camera.
Thank you for nice video Evan!
very nice to see how it screams quality craftsmanship within the camera itself. it looks so clean and organized. i have no doupt this camera will work for decades after purchase. Also, you inadvertantly possibly made the best repair guide for anyone in the future to look for. Seriously, i look for such teardowns if i can't find good service manuals and this invents the wheel before anyone else needs to. Great video!
After watching so many videos about this camera, i feel this is really the best one. No more opinions, just facts. Very well done and thank you
Thank you, this means a lot. I was definitely trying to let the camera speak for itself, and I appreciate that my approach came through. I believe that with the facts laid out, everybody can draw their own conclusions. Though I did let slip that, in my humble opinion, Pentax did a great job with this camera - considering all the effort involved - and I have found it (subjectively) to be a joy to use, far beyond my expectations.
@@EvanDorsky I always said that i'm not interested in half frame, and even if it was a 35mm camera, i would not buy it, having hundreds of second hand marvels for much cheaper at my reach, but i appreciatte the effort that Pentax did very much, because this opens a path for other makers. And after this video, my appreciation for this camera and for Pentax is even greater. Maybe everyone needs to see the guts of it... ;)
Weird mix of ribbon cables and hand-soldered individual wires. It looks well-made, but not necessarily well-designed…