The cropping ability of the K3


dcweather

Link Posted 28/12/2013 - 22:38
This may be of interest to the wildlife photographers in particular but today I have looked at some heavy cropping with the K3. I was hoping this would be a useful benefit and based on my very limited usage so far it has surpassed it. I've generally not had much light or sun and no subject but today was a bit better. This shot of a passing lorry was taken with my DA*300 whilst sitting in a bird hide. It was about 150m away I guess.This is straight raw image with all camera settings for noise on zero (do they affect raw images anyway?). No post processing. The same goes for the crop of the speech bubble in the middle of the Lorry. Irfanview says it is a 300% crop.





This was only ISO 350 but very little noise indeed.

Then I went for a little walk. The next shot has had a bit of my usual PP for lighting and slight sharpening on the resize down but still Ok I thought for a large crop (about 80%, I think) of a small bird to show some feather detail.





Last Edited by dcweather on 28/12/2013 - 22:40

bettyswolloks

Link Posted 28/12/2013 - 22:44
Impressive Stuff

bwlchmawr

Link Posted 29/12/2013 - 07:04
A big reason for buying a camera with this many pixels.
Best wishes,

Andrew

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K10D

Link Posted 29/12/2013 - 07:51
Yes it does work.

I seem to recall some on the forum saying that there was no need for even more MP but in your example you have demonstrated a benefit.

I would like to see the results of a K3 on the end of a Sigma 500 f/4.5, anyone got this combo or the 560mm & K3?

It also demonstrates the benefits of FF 36MP DSLR's.

Best regards

davidstorm

Link Posted 29/12/2013 - 10:33
That really is quite impressive Dave. I must invest in a decent bird hide and get out there with my K-3 to take some wildlife shots!

Regards
David
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RalphHardwick

Link Posted 29/12/2013 - 21:34
Next summer I'm heading to Iceland and we shall be heading out on a boat to do some Whale watching. I shall definitely be adding a K3 to my arsenal and I was keen to get a Sigma 150-500 specifically for this event.

Looking at this I now think that my 60-250 will be enough and it's WR.

Thanks you may have just saved me some money




although another lens might be nice anyway............
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Last Edited by RalphHardwick on 29/12/2013 - 21:40

dcweather

Link Posted 30/12/2013 - 00:03
Probably a good decision. You don't want to slow the boat down I think the K3 crop on my DA*300 is putting me more or less where I was in quality with my 150-500 for the same size image so I am toying with dispensing with it - except of course I can now crop more with that and it might be a bit sharper with the K3!
For what it's worth I took my 18-250 lens to Iceland in March and it served me well although I didn't do the Whale watch but it was good for the Aurora and everything else I did.
Dave
Last Edited by dcweather on 30/12/2013 - 00:07

Smeggypants

Link Posted 30/12/2013 - 00:42
Can't wait for 3000MP. Just go out there with a fish eye and crop several out of one shot.






but yes I've always agreed higher MP counts are good for cropping if the lens can keep up
[i]Bodies: 1x K-5IIs, 2x K-5, Sony TX-5, Nokia 808
Lenses: Pentax DA 10-17mm ED(IF) Fish Eye, Pentax DA 14mm f/2.8, Sigma 17-70mm f/2.8, Pentax-A 28mm f/2.8, Sigma 30mm F1.4 EX DC, Pentax-A 50mm f/1.2, Pentax-A 50mm f/1.4, Pentax-FA 50mm f/1.4, Pentax-A 50mm f/1.7, Pentax DA* 50-135mm f/2.8, Sigma 135-400mm APO DG, and more ..
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NeilP

Link Posted 30/12/2013 - 08:11
I'm keen to see how it performs with macro, the extra detail and 'cropability' should be useful there too
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dcweather

Link Posted 30/12/2013 - 10:30
Smeggypants wrote:
Can't wait for 3000MP. Just go out there with a fish eye and crop several out of one shot.






but yes I've always agreed higher MP counts are good for cropping if the lens can keep up

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Also all those massive white Canon lenses blocking up the bird hides can be replaced with 35mm lenses

dcweather

Link Posted 30/12/2013 - 10:34
NeilP wrote:
I'm keen to see how it performs with macro, the extra detail and 'cropability' should be useful there too

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I think you should borrow mine first Neil and compare shot for shot with your K5, remember I've come from the K30. I don't want to over "big up" the K3 because I know how good your results are with the K5.

Blythman

Link Posted 30/12/2013 - 10:55
Those goldies would be a good advert for any camera Dave. Never mind the size of the crop
Alan


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dcweather

Link Posted 30/12/2013 - 13:51
Cheers Alan. When I think of the trouble I go to sometimes and was just walking along and pointed at these in the tops of some alders!
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