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K20D & Sigma 135-400.
Posted By: Mallee Boy, 05-29-2008, 09:29 PM

I haven't got it quite right here, hand held and in too much of a hurry (traffic coming up behind me) but it does give you an idea of this combination.

Using a monopod/tripod I think I can get some pretty good results with this combo.

Shot at 400mm and cropped.

Cheers
Grant

Last edited by Mallee Boy; 12-27-2008 at 02:07 AM.
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05-29-2008, 09:32 PM   #2
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Not bad Grant - tell me you were at least walking and not shooting from the car window
05-29-2008, 09:33 PM   #3
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grant

What were the settings? ISO, shutter and apature.

Please see the photo in the link below, Sigma 70-200 F2.8 plus 2x TC, only resized for posting, no crop.

https://www.pentaxforums.com/forums/187646-post19.html

This is what I think the image should look like.

I am not sure what happened to your image but the eyes should pop out at you
05-29-2008, 09:36 PM   #4
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QuoteOriginally posted by daacon Quote
Not bad Grant - tell me you were at least walking and not shooting from the car window
Sorry Dave...car window. This was about the fourth attempt to shoot him/her, every time I would get close it would fly along to the next post......then another car loomed up behind!!!

05-29-2008, 09:39 PM   #5
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QuoteOriginally posted by Lowell Goudge Quote
grant

What were the settings? ISO, shutter and apature.

Please see the photo in the link below, Sigma 70-200 F2.8 plus 2x TC, only resized for posting, no crop.

https://www.pentaxforums.com/forums/187646-post19.html

This is what I think the image should look like.

I am not sure what happened to your image but the eyes should pop out at you
Hi Lowell,
Yes, I see what you mean. Must admit I was dis-appointed when my shots uploaded, I seem to have lost some sharpness in the process. The originals definately look a lot better this end.
(Both at f5.6 1/180 &125s respectively.)

Not sure why that would be.

Cheers

Last edited by Mallee Boy; 05-29-2008 at 09:49 PM.
05-29-2008, 10:14 PM   #6
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QuoteOriginally posted by Mallee Boy Quote
Hi Lowell,
Yes, I see what you mean. Must admit I was dis-appointed when my shots uploaded, I seem to have lost some sharpness in the process. The originals definately look a lot better this end.
(Both at f5.6 1/180 &125s respectively.)

Not sure why that would be.

Cheers
I guess the next question is, what ISO,

I know shake reduction helps but I might have gone for a higher ISO, to get 2 different things, more shutter speed, and to stop down a little.

I went back and looked at my origonal, reported as F6.7 (i.e. stopped down 2.5 stops from maximum) same shutter speed of 1/180th

I have found in most instances pushing the ISO up gets me better results because I can stop down.

I think you should see similar results, since your lens is probably similar quality to my combo of lens plus TC. Also since you have K20 (where as I have K10) you should not be afraid of high ISO,

I do note however, that in the 4+ years I have had this sigma lens, it never stops impressing me with the image quality. Maybe the 70-200 is just somehow better, but that is only a guess.

I also note you shot through the car window, that really does not help. I was lucky with my shot, out for a walk and he was just sitting there. Considering he is only 10 inches high, you can imagine I got quite close, I estimate 20 feeet, and he seemed quite content content to let me get that close. I took about 20 shots and walked away, without him leaving.
05-29-2008, 11:06 PM   #7
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I have used this exact lens. Grant kindly gave it to me once to try out on my K10D. I used it on some surfing and was amazed at how sharp and clear it was. All hand held. I have since learned a few more things about my camera and the settings are nothing at all like they were originally and i am sure that lens would blow me away even more with what i have learnt about my camera. All those nobs and wheels arnt put on there to make it look pretty. I havnt got one yet but its high on the list, I didnt want to give it back. Thanks again Grant. Was amazing. Cheers Keith

05-30-2008, 03:46 AM   #8
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I have this lens and use it frequently on my k10d. What I noticed is that due to the long length at 400mm, you will get camera shake. Even at 1/400-1/500 shutter speeds I noticed the shots were really good but, not tack sharp. I bumped my ISO up, and used shutter speeds of 1/800 and higher and all my shots were super crisp, even wide open. Dont be afraid to shoot high ISO's. Especially during the day outside. Expose to the right without clipping the highlights and you'll be amazed at the quality. I subscribe to alot of wildlife mags and from my observations sharp images are more important than digital noise. Give it a try and post back.
05-30-2008, 04:55 PM   #9
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Thanks people, will definately try the iso bump. ISO was 400 in these shots.
Hi Keith, your welcome, going to the PMA? I'm heading up there shortly.
Grant
05-30-2008, 05:40 PM   #10
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considering the circumstances, you did a fine job of capturing this beauty. Thanks for sharing.
05-30-2008, 05:52 PM   #11
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Thanks for the kind words Dianne, but they are pretty ordinary. I have gone back and looked at a few more that I took with this lens and the sharpness isn't quite there on any of them...then I remembered I had been fiddling with the auto focus adustment..... which was set to +5

So that may have just a little bit to do with it. Oh well, call it experience.

Here a couple more from the same lens, same trip.
Cheers
Grant

Last edited by Mallee Boy; 12-27-2008 at 02:07 AM.
05-31-2008, 01:10 AM   #12
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Just came back home Grant from PMA. Tried out Pentax 50-135 and the bigma. Samsung had them and they only had those 2 particular ones because one of there reps bought them himself. Had a few others there though. Had interesting conversation about future. C R Kennedy had a few lens's there but only a couple to fit a Pentax.
Keith
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