Forgot Password
Pentax Camera Forums Home
 

Reply
Show Printable Version Search this Thread
05-03-2015, 04:51 PM   #1111
Pentaxian




Join Date: Jun 2008
Location: Flyover America
Posts: 4,475
Still trying to wring something out of the Q and the 560mm.
Results have been very hit or miss. I think I'm pretty much at the limits of what I can do with this setup.
At this magnification (over 70x) even my very robust tripod and fork mount can be overwhelmed by vibration.
Also the issue of focus. Without focus peaking I would be dead in the water. It works but on fast moving little passerines results are inconsistent.

Anyway here are two from today. About a distance of 50-60 feet full frame.


Last edited by wildman; 05-07-2015 at 03:52 AM.
05-03-2015, 05:17 PM   #1112
Veteran Member
crewl1's Avatar

Join Date: Jul 2010
Location: Los Angeles, CA
Photos: Gallery | Albums
Posts: 9,797
QuoteOriginally posted by wildman Quote
Still trying to wring something out of the Q and the 560mm.
Results have been very hit or miss. I think I'm pretty much at the limits of what I can do with this setup.
At this magnification (over 70x) even my very robust tripod and fork mount can be overwhelmed by vibration.
Also the issue of focus. Without focus peaking I would be dead in the water. It works but on fast moving little passarines results are inconsistent.

Anyway here are two from today. About a distance of 50-60 feet full frame.
Nice work!
05-03-2015, 09:11 PM   #1113
Pentaxian




Join Date: Oct 2011
Location: Savannah, GA
Posts: 5,002
QuoteOriginally posted by wildman Quote
Still trying to wring something out of the Q and the 560mm.
Results have been very hit or miss. I think I'm pretty much at the limits of what I can do with this setup.
At this magnification (over 70x) even my very robust tripod and fork mount can be overwhelmed by vibration.
Also the issue of focus. Without focus peaking I would be dead in the water. It works but on fast moving little passarines results are inconsistent.

Anyway here are two from today. About a distance of 50-60 feet full frame.
With really long lenses, try using shake reduction at different settings, even on the tripod. With the Q7 and the 600mm, I was getting my best results with the focal length set to 800mm and SR turned on when on tripod but using handheld shutter release. I find that works better than using a delay or remote release and SR off unless there is absolutely no wind and I can let it settle. (Even with an APS-C body and long lens, I will often set the focal length to 66-80% of the true value when on tripod, using 400-500mm for the 600mm lens -- of course it won't let you alter the value on AF lenses which is a drawback I think.)

Last edited by vonBaloney; 05-04-2015 at 07:13 AM.
05-03-2015, 09:40 PM   #1114
Junior Member
bernall's Avatar

Join Date: Oct 2013
Location: Lyon
Posts: 30
QuoteOriginally posted by crewl1 Quote
Nice work!
+1

But what does it mean "At this magnification (over 70x)" ?

05-03-2015, 09:42 PM   #1115
Junior Member
bernall's Avatar

Join Date: Oct 2013
Location: Lyon
Posts: 30
QuoteOriginally posted by vonBaloney Quote
With the Q7 and the 600mm, I was getting my best results with the focal length set to 800mm and SR turned on when on tripod but using handheld shutter release
excellent tip ! To be tested asap
05-03-2015, 10:06 PM   #1116
Forum Member
januko's Avatar

Join Date: Nov 2014
Posts: 89
QuoteOriginally posted by wildman Quote
Still trying to wring something out of the Q and the 560mm.
Results have been very hit or miss. I think I'm pretty much at the limits of what I can do with this setup.
At this magnification (over 70x) even my very robust tripod and fork mount can be overwhelmed by vibration.
Also the issue of focus. Without focus peaking I would be dead in the water. It works but on fast moving little passarines results are inconsistent.

Anyway here are two from today. About a distance of 50-60 feet full frame.
Great shots!

I wish you can upload more with the combination!
05-04-2015, 03:35 AM   #1117
Pentaxian




Join Date: Jun 2008
Location: Flyover America
Posts: 4,475
QuoteOriginally posted by vonBaloney Quote
With really long lenses, try using shake reduction at different settings, even on the tripod. With the Q7 and the 600mm, I was getting my best results with the focal length set to 800mm and SR turned on when on tripod but using handheld shutter release. I find that works better than using a delay or remote release and SR off unless there is absolutely no wind and I can let it settle. (Even with an APS-C body and long lens, I will often set the focal length to 66-80% of the true value when on tripod, using 400-500mm for the 600mm lens -- of course it won't let you alter the value it on AF lenses which is a drawback I think.)
Thanks for that.
Will give it a try today.
Stay tuned.

---------- Post added 05-04-15 at 05:56 AM ----------

QuoteOriginally posted by bernall Quote
But what does it mean "At this magnification (over 70x)" ?
Just dividing prime focal length of glass (560mm) by diagonal of sensor (7.66mm) to give me an apparent magnification of 73x.
Or to put it another way I'm assuming a lens with a focal length of 7.66mm would be considered "normal" (neither wide angle nor telephoto) on the Q.
Don't care if it's exactly accurate but it does give me a quick and dirty way of comparing different FL glass on a given sensor.

Last edited by wildman; 05-04-2015 at 03:58 AM.
05-04-2015, 08:28 AM   #1118
Pentaxian




Join Date: Nov 2014
Location: South Bend, IN, USA
Photos: Gallery | Albums
Posts: 2,984
QuoteOriginally posted by wildman Quote
Just dividing prime focal length of glass (560mm) by diagonal of sensor (7.66mm) to give me an apparent magnification of 73x.
Or to put it another way I'm assuming a lens with a focal length of 7.66mm would be considered "normal" (neither wide angle nor telephoto) on the Q.
Don't care if it's exactly accurate but it does give me a quick and dirty way of comparing different FL glass on a given sensor.
I guess there are various ways of identifying a "normal" focal length.

The standard prime lens for the Q family is the 01 lens, which is 8.5mm.

Back in the day of 35mm film, the standard lens was considered to be 50mm (according to my calculations, the diagonal was 43.3mm) because that was thought to give the same field of view that we get from our eyes;
on the Q an 8.9mm lens would give the same field of view.


Last edited by reh321; 05-04-2015 at 08:40 AM. Reason: more thoughts
05-04-2015, 11:18 AM   #1119
Pentaxian




Join Date: Jun 2008
Location: Flyover America
Posts: 4,475
QuoteOriginally posted by reh321 Quote
I guess there are various ways of identifying a "normal" focal length.
Yep. You will get no argument from me. For me, subjectively, on my K5 50-60mm looks "normal".

-----------------------------------------------------------------

"For still photography, a lens with a focal length about equal to the diagonal size of the film or sensor format is considered to be a normal lens; its angle of view is similar to the angle subtended by a large-enough print viewed at a typical viewing distance equal to the print diagonal;[2] this angle of view is about 53 diagonally. "

Normal lens - Wikipedia, the free encyclopedia

-----------------------------------------------------------------

Last edited by wildman; 05-05-2015 at 04:21 AM.
05-11-2015, 12:40 PM - 2 Likes   #1120
Junior Member




Join Date: Jun 2007
Location: Europe - France - Paris
Photos: Gallery
Posts: 35
Hi

Sigma 120-400 DG OS HSM - works very well with the Q . Handheld SR ON , manual release

1) at 5mm ( with the 02)
2) at 400 ( with the sigma)
Attached Images
View Picture EXIF
PENTAX Q  Photo 
View Picture EXIF
PENTAX Q  Photo 
05-11-2015, 02:02 PM   #1121
Pentaxian




Join Date: Jun 2008
Location: Flyover America
Posts: 4,475
QuoteOriginally posted by rafa75 Quote
Sigma 120-400 DG OS HSM - works very well with the Q . Handheld SR ON , manual release
Well done.
Lovely countryside as well.
05-12-2015, 10:19 AM   #1122
Junior Member
bernall's Avatar

Join Date: Oct 2013
Location: Lyon
Posts: 30
QuoteOriginally posted by rafa75 Quote
Hi

Sigma 120-400 DG OS HSM - works very well with the Q . Handheld SR ON , manual release
Impressive !

And unexpected (for me) ...
05-16-2015, 04:39 AM   #1123
Forum Member
Phenix jc's Avatar

Join Date: Jan 2015
Posts: 57
QuoteOriginally posted by rafa75 Quote
Hi

Sigma 120-400 DG OS HSM - works very well with the Q . Handheld SR ON , manual release

1) at 5mm ( with the 02)
2) at 400 ( with the sigma)
VG!
The OS version of the lens has indeed a good reputation
Don't hesitate to share other tests

Steve Nunez had good results with the Sigma 170-500 and an "old" Sigma 70-300
Bigma not good
Sigma 70-200os VG

---------- Post added 05-16-15 at 04:50 AM ----------

QuoteOriginally posted by vonBaloney Quote
With really long lenses, try using shake reduction at different settings, even on the tripod. With the Q7 and the 600mm, I was getting my best results with the focal length set to 800mm and SR turned on when on tripod but using handheld shutter release. I find that works better than using a delay or remote release and SR off unless there is absolutely no wind and I can let it settle. (Even with an APS-C body and long lens, I will often set the focal length to 66-80% of the true value when on tripod, using 400-500mm for the 600mm lens -- of course it won't let you alter the value on AF lenses which is a drawback I think.)
Tripod and SR turned on works definitively. (Edit : Q & Q7 only!)
In steady conditions, remote release is better for me.
But I didn't try to cheat the SR with a longuer focal lenght.
Probably worthy in windy conditions, I'll give a try next time.

Last edited by Phenix jc; 05-16-2015 at 04:51 AM.
05-22-2015, 08:35 PM - 2 Likes   #1124
Pentaxian




Join Date: Jun 2008
Location: Flyover America
Posts: 4,475
The limits to "reach".

This is a shot of two small birds (Rough-Winged Swallows) across a small river at a distance of 60+ feet.
At this distance I'm at my limits. No matter the size of the sensor, FL and quality of glass, post processing etc all of that is being overwhelmed by air turbulence and quality.
Sure you can take more distance shots of large birds that are decent but you are losing detail very quickly beyond this distance as a general rule.
We are living on Earth not in a vacuum.

Swallows at 60 feet and Cardinal at 30 feet. S1 at 560mm both Full Frame.

Last edited by wildman; 05-29-2015 at 06:58 AM.
05-24-2015, 07:28 AM - 3 Likes   #1125
Site Supporter
Site Supporter




Join Date: Sep 2006
Location: midwest, United States
Photos: Gallery
Posts: 3,329
Original Poster
Original Pentax Q on Pentax DA*300. Practicing manual focusing with moving subject. Not easy using LCD without hood. I couldn't do it without tripod.
thanks
barondla
Attached Images
View Picture EXIF
PENTAX Q  Photo 
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!
adaptor, camera, focus, frame, hummingbird, images, iso, loupe, marco, mirrorless, nikon, pentax, pentax q, pentax q10, pentax q7, q-s1, q10, q7, setup, shot, shots, sigma 500mm, sort, thanks
Thread Tools Search this Thread
Search this Thread:

Advanced Search


Similar Threads
Thread Thread Starter Forum Replies Last Post
Post your "Park Bench" "or "Picnic Table" images tessfully Mini-Challenges, Games, and Photo Stories 1440 14 Hours Ago 10:18 AM
Don't say Pentax "Q" in French ... "Q" = "cul" = "A--" Jean Poitiers Pentax Q 52 11-10-2013 06:25 AM
"Focus Adjustment Washer" replacement...(with images) Catalana Pentax K-5 18 11-04-2012 03:40 PM
"Real Life" K5 AF.C images yet? jpzk Pentax K-5 69 02-02-2011 03:48 AM
How do I turn this so-called "film" into images? Todd Adamson Pentax Medium Format 12 01-07-2011 03:33 PM



All times are GMT -7. The time now is 01:15 AM. | 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