Forgot Password
Pentax Camera Forums Home
 

Reply
Show Printable Version Search this Thread
08-16-2020, 06:42 PM - 3 Likes   #6436
Senior Member




Join Date: Jul 2012
Location: Sterling, VA
Photos: Gallery | Albums
Posts: 137
Thank you. I really enjoy walking around with the 01-02-06 combination, it's just pure, carefree fun. Some more shots from today:











08-16-2020, 07:12 PM   #6437
Site Supporter
Site Supporter




Join Date: Aug 2013
Location: Astoria, Oregon, US & A
Posts: 59
QuoteOriginally posted by isb.deep Quote
Thank you. I really enjoy walking around with the 01-02-06 combination, it's just pure, carefree fun. Some more shots from today:









You have the eye for it. The camera is secondary. Great stuff. I loved the pic of the Hosta.
08-18-2020, 11:03 PM - 5 Likes   #6438
kwb
Site Supporter
Site Supporter




Join Date: Mar 2015
Location: Pacific North West
Photos: Gallery | Albums
Posts: 620
Intrigued by John's Saturn, I've been trying this for some time and this is what I got so far.

Shot with Q7 and my 480mm f/6 telescope with a 2x Barlow (teleconverter), ISO 1600 1/13 sec, stacking many pictures. Also attached is an example of a single image (mirrored vertically). I think two main limitations here are the weather and my focus accuracy.
Attached Images
 
View Picture EXIF
PENTAX Q7  Photo 
08-20-2020, 05:34 PM   #6439
Site Supporter
Site Supporter




Join Date: Aug 2013
Location: Astoria, Oregon, US & A
Posts: 59
QuoteOriginally posted by kwb Quote

<snip>

I think two main limitations here are the weather and my focus accuracy.
OK, I'll admit to being not quite as bright as the average bear. What is the focus problem? Set to infinity and shoot is not how it works?

08-20-2020, 07:38 PM - 1 Like   #6440
Senior Member




Join Date: Jan 2018
Posts: 293
QuoteOriginally posted by kwb Quote
Intrigued by John's Saturn, I've been trying this for some time and this is what I got so far.

Shot with Q7 and my 480mm f/6 telescope with a 2x Barlow (teleconverter), ISO 1600 1/13 sec, stacking many pictures. Also attached is an example of a single image (mirrored vertically). I think two main limitations here are the weather and my focus accuracy.
Wow, thatís fantastic! Amazed at the level of noise reduction. How many photos are stacked for this result?
08-20-2020, 09:05 PM   #6441
kwb
Site Supporter
Site Supporter




Join Date: Mar 2015
Location: Pacific North West
Photos: Gallery | Albums
Posts: 620
QuoteOriginally posted by boojum Quote
OK, I'll admit to being not quite as bright as the average bear. What is the focus problem? Set to infinity and shoot is not how it works?
Hi Boojum, telescopes don't have infinity stops. Even if you're using camera lenses, if they're AF lenses they'll likely focus beyond infinity to make sure that AF to infinity works despite manufacturing tolerances and temperature variations at different places/time.
08-20-2020, 10:19 PM - 3 Likes   #6442
kwb
Site Supporter
Site Supporter




Join Date: Mar 2015
Location: Pacific North West
Photos: Gallery | Albums
Posts: 620
QuoteOriginally posted by 2old4toys Quote
Wow, thatís fantastic! Amazed at the level of noise reduction. How many photos are stacked for this result?
Thanks 2old4toys!
Looking at my log, I took 534 shots in burst mode triggered by IR remote, but half of that was discarded (i.e. I let AutoStakkert 3 to generate four different stacks using best 80%, 50%, 25% and 10% of all frames based on whatever quality assessment the program makes, reviewed the results and took 50% one).
08-21-2020, 01:49 PM   #6443
Site Supporter
Site Supporter




Join Date: Aug 2013
Location: Astoria, Oregon, US & A
Posts: 59
QuoteOriginally posted by kwb Quote
Hi Boojum, telescopes don't have infinity stops. Even if you're using camera lenses, if they're AF lenses they'll likely focus beyond infinity to make sure that AF to infinity works despite manufacturing tolerances and temperature variations at different places/time.
OK, thank you for that. I have just tried with a Tamron mirror telephoto on a full frame but not yet on the Q-S1. And as the jump in magnification on the Q-S1 is crop factor I am not really too interested in trying it. Maybe just as an exercise but not for any continued serious work.

Thank you again for your help.

08-31-2020, 06:54 PM - 2 Likes   #6444
Site Supporter
Site Supporter




Join Date: Oct 2011
Posts: 218
Q-S1 with FA 77mm 1.8 Limited
Attached Images
View Picture EXIF
PENTAX Q-S1  Photo 
09-01-2020, 11:05 AM - 1 Like   #6445
Site Supporter
Site Supporter




Join Date: Oct 2011
Posts: 218
Zoom 06 at 45mm ( 205mm )
Attached Images
View Picture EXIF
PENTAX Q-S1  Photo 
09-01-2020, 06:40 PM   #6446
Site Supporter
Site Supporter




Join Date: Aug 2013
Location: Astoria, Oregon, US & A
Posts: 59
QuoteOriginally posted by Deesquared Quote
Very nice set of images youíve created with your Q!
Thank you.
09-02-2020, 02:31 PM - 4 Likes   #6447
kwb
Site Supporter
Site Supporter




Join Date: Mar 2015
Location: Pacific North West
Photos: Gallery | Albums
Posts: 620
Yesterday the moon was really red behind clouds and hazy air.

Red moon, waxing gibbous 99% by k kwb, on Flickr
09-06-2020, 11:27 PM - 1 Like   #6448
kwb
Site Supporter
Site Supporter




Join Date: Mar 2015
Location: Pacific North West
Photos: Gallery | Albums
Posts: 620
Moon and Mars

Mars was very close to the moon. Q7 and BORG 55FL. Seeing (turbulence) was bad, I took a bunch of pictures (turned out I shot 78) and manually selected the one where Mars looks reasonably round.


Moon and Mars, 2020/09/05 by k kwb, on Flickr

Last edited by kwb; 09-06-2020 at 11:34 PM.
09-08-2020, 10:13 PM   #6449
Site Supporter
Site Supporter




Join Date: Aug 2013
Location: Astoria, Oregon, US & A
Posts: 59
QuoteOriginally posted by kwb Quote
Yesterday the moon was really red behind clouds and hazy air.

Red moon, waxing gibbous 99% by k kwb, on Flickr
Howdja do it?
09-09-2020, 08:27 AM   #6450
kwb
Site Supporter
Site Supporter




Join Date: Mar 2015
Location: Pacific North West
Photos: Gallery | Albums
Posts: 620
QuoteOriginally posted by boojum Quote
Howdja do it?
Oh, that's Q7, BORG 55FL and Pentax 1.7x AF adapter (though of course AF doesn't work on Q7). This setup gives me 425mm f/7.7.
Reply

Bookmarks
  • Submit Thread to Facebook Facebook
  • Submit Thread to Twitter Twitter
  • Submit Thread to Digg Digg
Tags - Make this thread easier to find by adding keywords to it!
air force, camera, eye, flash, flickr, lens, mirrorless, palm springs, pentax, pentax q, pentax q10, pentax q7, phil, pm, post, q-s1, q10, q7, rain, shot, studio, thanks, time, triggers
Thread Tools Search this Thread
Search this Thread:

Advanced Search


Similar Threads
Thread Thread Starter Forum Replies Last Post
People I now have to share my K7 dgaies Post Your Photos! 25 01-18-2014 04:21 AM
Macro Let's share this one! eaglem Post Your Photos! 4 08-20-2011 03:47 PM
Nature We Like To Share! eaglem Post Your Photos! 4 04-22-2011 07:21 PM
Something to share Mallee Boy General Talk 7 05-13-2010 03:50 PM
Tips for shooting lens comparison shots you like to share? cheekygeek Pentax SLR Lens Discussion 5 01-21-2010 05:55 AM



All times are GMT -7. The time now is 09:00 PM. | See also: NikonForums.com, CanonForums.com part of our network of photo forums!
  • Red (Default)
  • Green
  • Gray
  • Dark
  • Dark Yellow
  • Dark Blue
  • Old Red
  • Old Green
  • Old Gray
  • Dial-Up Style
Hello! It's great to see you back on the forum! Have you considered joining the community?
register
Creating a FREE ACCOUNT takes under a minute, removes ads, and lets you post! [Dismiss]
Top