- Видео 76
- Просмотров 41 514
Mark Stephen Photography
США
Добавлен 29 май 2009
Homeless and unhurried, I am off to find the meaning of life.
Hunting for Gold!
Join me as I search the Olympic Peninsula of Washington for GOLD and Stars!
Просмотров: 114
Видео
Dark Sky Camping
Просмотров 512 месяца назад
A preview of the images found in Riley, Oregon during a new moon.
Exploring Elk Lake Trail: Olympic NP
Просмотров 722 месяца назад
Today we are deep in the Olympic National Park, looking at waterfalls and hiking to a hidden lake nestled in one of the valleys of the Olympic mountain range.
Exploring Lake Wynoochie
Просмотров 1233 месяца назад
Today we head out deep into the Olympic rainforest to explore some waterfalls and see what trouble we can get into.
Up's and Down's of Metal Detecting
Просмотров 413 месяца назад
Sometimes you get a good find and others, you sort of strike out...But every day is an adventure.
Chasing Waterfalls
Просмотров 425 месяцев назад
Today I am out looking at spring runoff from the Olympic mountain snow melt. We have little dabblers and monster falls in this video. If you like the video, please give it a thumbs up!
Freezing in a Cold Van
Просмотров 9046 месяцев назад
Living in a van is not always fun and games, sometimes you have to wake up in freezing temperatures and deal with frigid conditions.
Olympic National Forest: Spoon Creek Falls
Просмотров 566 месяцев назад
A spring day drive out to the middle of the Olympic forest for a hike down to Spoon Creek falls. Lake Wynoochie and camping are nearby.
SCT Collimation with Tri Bahtinov Mask
Просмотров 7 тыс.8 месяцев назад
SCT Collimation with Tri Bahtinov Mask
Correcting Backlash on Crayford Focusers
Просмотров 72Год назад
Correcting Backlash on Crayford Focusers
Ioptron HEM44 EQ Mount 6 Month Review
Просмотров 2,6 тыс.Год назад
Ioptron HEM44 EQ Mount 6 Month Review
Exploring the Olympic High Steel Bridge
Просмотров 42Год назад
Exploring the Olympic High Steel Bridge
OMG FINALLY a great video that defines this. Thank you!!!!
You're so welcome!
I am making a tri-bahtinov mask , I am wondering if the mask has to sit on the retainer rign or can it hand over the front of the scope like the regular bahtinov mask does
Is there info on how the mount tracks for imaging? Sorry if I missed it.
I don't have tracking data. It might be at Cloudynights though
Good luck! Nothing like Bortle 1-2 skies!!
Worthless...You didn't show how to collimate. Can any one show a simple way to collimate a SCT without trying to sound scientific or complicated. I don't use a computer and software to look through my LX200.
Sorry this video wasn't helpful for you, I will try harder next time.
I feel I’ve wasted too much time over the decades in attempting collimation using the traditional method given in the manuals of my vintage C5 and C8. Do I need camera-to-computer live output of the scope’s image in order to use the TB Mask and cardboard overlay to attempt this collimation for optimal visual use? I guess you use super-imposition of the diffraction spikes over the colored calibration dots-but I just need accurate collimation for visual observing? I’m also trying use of an artificial star placed at a reasonable distance. Collimation is the biggest time consumer in this hobby-but Thank You for this info & demonstration :-)
Thanks for your feedback, It will help in making future videos.
Which ioptron driver on the ASIAir are you using ? I don’t see the HEM44 listed ??
The ASI AIR considers this mount the same as the CEM40 mount. Both of them use the same firmware for operation.
Could you please make a follow up video showing your process for using this
Thanks for your feedback, I will try this month to make a follow-up video.
Still having issues with this mount? Try it with NINA. I have Goto issues with ASIAir and my AVX mount. Always syncing mount after slewing helps. Thanks.
Thanks for the tip!
Collimation of SCT is never done by loosening screws. Such collimation will not hold for long.
It’s impossible to have them all tightened up. The secondary mirror will not be aligned. The whole point of the three screw method is to tighten and loosen to get the mirror perfectly perpendicular to the axis.
The secondary mirror is held in place and balanced to the frame with a small rubber "O" ring. The 3 collimation screws are used to either compress OR relax the pressure on the "O" ring until the secondary mirror is aligned with the primary mirror.
Thanks for the explanation, and the cardboard cover design (I was wondering how to make one). I have been using a Bahtinov mask on my C9.25 but I got a Tri Bahtinov a few months ago and I haven't tried it out yet. I'm going to give it a try with your method.
Glad it was helpful!
Nice video, shots of still lakes is always better when you’re the only one there. When I video I specifically choose environments where I’m hopefully alone, except my faithful dog lol.
Thanks for the tips! So True!
Thanks for the realistic information. Van life sounds great if you are in a moderate climate with decent weather and/or if you have a complete, well insulated buildout which includes heat and air conditioning. Van life comes with tremendous freedom and the adventure of hitting the road but it also comes with tremendous inconveniences even if you spend the big bucks to get well equipped vehicle. It seems to come with both extreme ends of the scale; you have to be able to endure but there is a great payoff.
So very true, I thouroghly enjoy the experience, but it is a completely different lifestyle.
I would like to hear story about this van, take care! ( U have new subscriber!)
Thank you! Will do!
yup !!!! i read all those "helpful tips" about how to stay warm in a van , and u can tell which writers are young people. They're the ones saying "oh just do this & you'll be warm all night". uh - huh.... no acknowledgement for the poor souls who have to get up and tinkle 2-5 times during the night. i want the space to be warm !!!!! the native americans could warm their wigwams and tipis. There has to be a way to warm my van !
Last night in the Olympic mountains I had to get up twice, but I got 6 hours of sleep still. I have a heated pad on my bed that makes hoping back into bed fun.
Lol, telling it like it is. Way to go Mark. Hello from your neighbour to the north
Thanks for the feedback. I appreciate it.
Can you buy the cardboard overlay in plastic? What is it called? I have essential tremors so i can’t cut it out.
I used the top of a liquor box for the template and used a razor knife to cut the cardboard. This is a custom cutout so I don't think it is for sale anywhere.
Very interesting concept! Thanks for sharing. Which screw do I need to turn? If I move the purple dot of the cardboard, so that it matches the red dot on the mask, do I turn the screw of the secondary that is matching the red spot, if Collimation is a bit off?
The dots of different color represent the different "Triads" of the scope itself. When you move the template around in a circle, you will see some spikes which are not evenly separated, and the collimation screw which is exposed will be the one to loosen or tighten to evenly space the spikes.
Looks like a beautiful park to visit
This would be a great "Off Season" hiding spot for the weekend.
Amazing work ❤
Thanks much, comments motivate me to produce more videos.
I'm confused what the cardboard section does? What functionality is that adding that isn't already in the mask? Thanks.
A Tri-Bahtinov mask has 3 sections. The cardboad mask isolates 2 of the 3 sections to assist in deteerming which of the 3 collimation screws will be adjusted. you can display the section where the spikes are not even and adjust the associated screw to widen or narrow the collimation spikes for that section.
@@Zealor365But adjusting one screw for one set of spikes simply impacts the others so you end up chasing your tail.
@@Zealor365 No cardboard is need, just place your hand next to one of the collimation screws to see if the shadow of your hand corresponds to the set of spikes you want to adjust.
It's Bahtinov not Baktinov.
Thanks for the correction.
Thanks for sharing... very interesting approach!.. If you don't mind, I'd appreciate if you could clarify the following doubt: When you line up the cardboard mask with one of the collimation screws, you keep working that screw until the three spikes are equidistant and then move to the next section?
A Tri-Bahtinov mask has 3 sections. The cardboad mask isolates 2 of the 3 sections to assist in deteerming which of the 3 collimation screws will be adjusted. you can display the section where the spikes are not even and adjust the associated screw to widen or narrow the collimation spikes for that section.
what were your results plugging it in directly without the controller? Is it the exact same as setting the controller to high or does it produce more amp draw and greater watts? I have these dew heaters and they don't seem to get very warm and I have no way to test their amp draw.
Plugging it in directly to the source provides full power continuosly. The amp draw is stated in the product description of the vendors website, and is dependent on the length of the strap.
Digging up a schoolyard?
Two empty playfields from the 1960's where the schools were torn down 20 years ago. City property waiting for a new purpose.
PLEASE TELL US WHAT TRI-PIER YOU ARE USING WITH HEM44 MOUNT on the 6 month review. Thanks!
The Tri pier in use is the William Optics Mortar 800.
Hello! I'm considering demounting my 8" LX200 classic and putting it on a HEM44. I'd like to find out the distance from the RA axis to the base of the dovetail saddle. The enclosure I have it in has 24" from the east wall to the west wall. So, when the mount rotates all the way over so the the OTA is completely on one side, I would like to calculate whether there is enough clearance - 8" plus dovetail plate plus distance to the RA axis. I called Ioptron, but they did not have any any hand to measure. Best regards. Mike
I believe it is 5.7 inches.
Sorry to hear of your problems, but this is very helpful for me. I was considering the new HAE43EC but maybe I’ll stick with the CEM40EC a little longer. Good luck with yours.
I am considering going back to the CEM40EC
I think it's a bug between the Asiair+ and the mount. My GEM28 does it. It is something in the goto commands from the Asiair. My work around is to take a preview image after a capture session, plate solve it, sync it, then have the Asiair move to the next target. The freeze seems to be in the goto function as I can manually move the mount with the AA+ and ioptron hand command. Telling it to go home doesn't work either. It's like the mount and the AA+ get stuck on the target. As long as I take previews and sync the plate solving things are fine. Although I have not tested it, I think this is an issue with the Asiair. If you run your mount with a computer does it do this?
NOTE: I am getting a lot of feedback from Facebook groups that other users are experiencing the same problem.
@@Zealor365 I bought an AM5 in December and sold the GEM28. The AM5 has been solid.
ASIAir is the gateway to their AM5. My AVX mount has several issues with my ASIAir Plus 256. GoTo problems. Mount disconnect errors and manual slews in DEC don’t stop when lifting my finger off my iPad screen. Opened several bug reports with ZWO and working with them in their new beta release the problems still exist. Don’t think the ZWO techs care. I’ve moved on to NINA with a Mele MiniPC and no issues ith the mount because I’m using the CPWI driver.
Hi Mark! I may have a similar issue with my C8-XLT. Do you have any before and after images or videos?
To be honest, I am giving up on the SCT and going back to refractors.
Last night I spent between 1.5 and 2 frustrating hours trying to collimate my C6. I used Arcturus, which was up around 60 degrees, as my target star and began trying to use a Tri-Bahtinov mask. I couldn’t make any headway and might have made things worse, so I shifted to the airy disk method. After the airy disk looked like it was about one step away from good collimation, all of my effort made things much worse, and whatever I did with the collimation screws, I couldn’t get the circle we want in the center to move away from the edge. Disheartened, I gave up, decompressed for 30 minutes, and went to bed. I in my fourth week of recovering from Covid-stopped testing positive four days ago-so maybe the virus is affecting my judgment, but at least last night I was thinking of getting out of the SCT business and working primarily with my William Optics Redcat 61 on my AM5 mount and controlled with an ASIAIR+, which works great. And this after buying a used Celestron 8se just a couple of weeks ago. Haven’t looked into its collimation yet, and after last night’s debacle, I’d probably be afraid to try to adjust it if need. Not sure what to do, but the thought of leaving SCTs behind has some positive aspects. So it’s interesting to see that’s exactly what you are doing. I’m a member of my local astronomy club, so maybe I can pay someone much better at collimation than I am to try to get my scope(s) collimated.
Hi what tripod are you using?
This is the William Optics Mortar 800
Thank you for your review. Very informative. Clear skies!
Glad it was helpful!
2-3 degree differences! So, you didn’t figure out which one is right. Neither. Surprised? Moreover, guiding numbers from ASAir is not correct either. It shows 0.5”, but could be 1” in PHD2 software. IOptron never sees problem until someone sues them. If you really like lightweight mount. You could get Rainbow Astro with encoders. You could change scope as well and get Tak 85 or Esprit 80. All my recommendations will increase quality of astrophotography and enjoyment of the hobby.
Thanks much for the insight!
Thank you. Where did you order this mount because no other dealer is giving free counterweight bar. May be that is free in EC versions. Let me know.
I bought it from Oceanside telescope. They went out of business 6 months ago
I am liking the looks of this thing. Mark you do realize that you're gonna make me spend money😂😂
I believe you can do an excellent job of stimulating the economy with your decision.
Amazing, never knew that one could do so much with specialized post processing in astrophotography! 😎😎
Thanks,
What a beautiful place. I do enjoy the outdoors, but I like regular Bud! You be careful out there, I didn't see your friends 😀
My friends don't like to be in videos.
Hey . Unblock me mark . Text me
Does the mount arrive set up for the Losmandy dovetail?
No, but it can be switched in about 15 minutes. 4 screws
Love your video. Hubby & I will be driving up to Bremerton at the end of May, hoping we can find a day to take this in & hoping there will still be some birds of prey in the area.🦅
Seabeck's Big Beef Creek is a wonderland of Eagles and Osprey.
Washington state history
Have guide cam shorter exposures helped?
I have found that my guiding exposure is VERY dependent on seeing conditions. Last night during POOR seeing I had to take the exposure up to 5 seconds. Most nights though, I can get OK numbers with a 1-2 second time.
Was wait for a few minutes and didn’t see any special lasagna 😂😂
Thanks
Try with guiding exposures of .5 and then maybe 1 second. Also try lowering your aggression. Start at 35 and work up from there.
Thanks for the tip. I will try it. Next clear skies in about 3 weeks.
Hi there, do you still have to perfectly balance your scope with this mount?
HEM - Harmonic equatorial mounts do not require balancing on the RA axis. I do balance the DEC axis per the instruction in the Iopton manual for the HEM44.
Looking promising 🙂 The strainwave mounts seem to respond better with short guide exposures, maybe try 1 second next time out.
Thanks, I will try that!
Very nice!!
Thanks Much!
I know what you mean about not being clear skies. Last night was the first full night of imaging for me here in upstate NY. Got five targets in but seeing was not that great and had some occasional high, but thin clouds too. Using my Redcat 51/asi2600mc on AVX mount with asiair plus, asi app, and zwo eaf. All worked well but not especially crazy about the AVX tracking. PA went ok but images seem to jump back and forth while reviewing so not too steady or consistent during tracking. (Hope to get last night's stuff posted sometime this week.) So, thinking about getting a better mount and prob leaning towards harmonic, wave gear type. Let us know how your new mount performs! Thanks and good day.....cs!
Everyone is talking about the ZWO AM5 and I think I like it.
I'd be interested to here how your guiding goes. This is the first video I've seen on this mount.
It's cloudy this week. I might get some imaging this weekend and will tape the activity.
Here's another video of my review of the EC version from The Astro Imaging Channel.
ruclips.net/video/cUZJpthQB-8/видео.html
Looks good!
Thanks!! How are You?
How you mount the scope to the tripod? Did u just screw into the 1/4 inch mount??
The setup shown is for display purposes only. The telescope is used on a EQ mount in practice.