Experiences with the new K-7 Camera


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Impressive high ISO photos, Frank! Looks like ISO3200 is *very* useable. Thank you for your detailed reports on the K7 as I am looking forward to getting mine as soon as they arrive in Oz. :)
 

Lance B said:
Impressive high ISO photos, Frank! Looks like ISO3200 is *very* useable. Thank you for your detailed reports on the K7 as I am looking forward to getting mine as soon as they arrive in Oz. :)
Click to expand...

I just got v1.0 firmware installed ;) Will do the same test again tonight and see how. Will report back tomorrow :)
 

fengwei said:
I just got v1.0 firmware installed ;) Will do the same test again tonight and see how. Will report back tomorrow :)
Click to expand...

I was about to ask whether you have managed to get the v1.0 firmware. Looks like you managed to get it.:)

Show some pics with more shadows in it...;)
 

istDeS said:
I was about to ask whether you have managed to get the v1.0 firmware. Looks like you managed to get it.:)

Show some pics with more shadows in it...;)
Click to expand...

waiting for FW review of the firmware 1.0.....等你等到我心痒痒。。。。。;p
 

the iso looks 2 stops better than K20D... :devil:
 

Did some high ISO testing again after I upgraded the firmware to v1.0. Same setup: K-7 w/ FA31 mounted on tripod, 2 sec mirror up. Someone said the scene wasn't dark enough in the previous test, so I changed a bit, only left one light on (I left two lights on in the prevous test). Here are a set of photos taken w/ NR set OFF, all from RAW (DNG) file converted by ACR (w/ default setting) to JPG, save in quality of 10 , except the ISO6400 ones which were saved at quality of 8 due to the bigger file size (over 5mb if saved above quality of 8, my photobucket account has a file size limite of 5mb).

ISO100：
K7FW0108_dng_s.jpg

Original:
http://img.photobucket.com/albums/v507/fengwei/K7Testing/K7FW0108_dng.jpg

ISO400：
K7FW0109_dng_s.jpg

Original:
http://img.photobucket.com/albums/v507/fengwei/K7Testing/K7FW0109_dng.jpg

ISO800：
K7FW0110_dng_s.jpg

Original:
http://img.photobucket.com/albums/v507/fengwei/K7Testing/K7FW0110_dng.jpg

ISO1600：
K7FW0111_dng_s.jpg

Original:
http://img.photobucket.com/albums/v507/fengwei/K7Testing/K7FW0111_dng.jpg
 

K-7 has three level of NR (noise removal) setting, user can choose to disable it, or set it to low, medium or high. User has option to start NR at ISO200, 400, 800 or 1600. Of course NR only works on JPG output, it doesn't affect RAW files.

Here I only tested ISO800 and above, to see how effective the NR works at different settings. All are straight out of camera in JPG, resaved to quality of 10 to reduce file sizes.

You can see the inbody NR is pretty effective on JPG output.

ISO800 NR set to OFF:
K7FW0110_dng_s.jpg

Original:
http://img.photobucket.com/albums/v507/fengwei/K7Testing/K7FW0110_dng.jpg

ISO800 NR set to low:
K7FW0114_p_s.jpg

Original:
http://img.photobucket.com/albums/v507/fengwei/K7Testing/K7FW0114_p.jpg

ISO800 NR set to medium:
K7FW0118_p_s.jpg

Original:
http://img.photobucket.com/albums/v507/fengwei/K7Testing/K7FW0118_p.jpg

ISO800 NR set to high:
K7FW0122_p_s.jpg

Original:
http://img.photobucket.com/albums/v507/fengwei/K7Testing/K7FW0122_p.jpg
 

 

 

 

ISO3200 is still usable if exposed properly. But ISO6400 is pretty bad. I don't think I'd ever use it anyway.
 

Some special filters from K-7.

#1: color extraction filter.
You can extract one of the six colors from the photo and keep it there, all the other colors will be converted to b&w. You can even set the level of extraction, kinda like the brush density in photoshop. Pretty cool if you ask me. Here is one quick sample in which only red (or close) color kept. JPG straight out of the camera:

K7FW0148_s.jpg



#2 Fisheye filter
Not really what I liked buy you can see the difference. Straight out of the camera taken w/ 18-55WR kit lens at 18mm:

K7FW0145_s.jpg


K7FW0146_s.jpg
 

I also did a quick test on HDR, which only works on JPG output. This is not the best scene to test HDR, but you can see the effect.

#1. No HDR, no D-Range adjustment:
K7FW0135_s.jpg


#2. No HDR, D-Range set to highlight and shadow correction:
K7FW0136_s.jpg


#3. HDR set to Standard:
K7FW0137_s.jpg


#4. HDR set to Strong:
K7FW0138_s.jpg
 

fengwei said:
ISO3200 is still usable if exposed properly. But ISO6400 is pretty bad. I don't think I'd ever use it anyway.
Click to expand...

FW, thanks for the 'hard work' :sweat: ;)
Must be loads of fun with the K7.

ISO1600 blows me away! totally usable and probably better than my ISO800 on my K100D.
 

fengwei said:
Some special filters from K-7.

#1: color extraction filter.
You can extract one of the six colors from the photo and keep it there, all the other colors will be converted to b&w. You can even set the level of extraction, kinda like the brush density in photoshop. Pretty cool if you ask me. Here is one quick sample in which only red (or close) color kept. JPG straight out of the camera:

K7FW0148_s.jpg
Click to expand...


actually this color extraction filter can be found in alot of the older and current canon ixus cameras.. althought not many people even know that its there.. but its there.. it does colour extraction swap too
 

Here are a set of quick testing shots I took last night, just walked around our block, and also took some photos in Ben's home. All taken w/ K-7 and FA31 (except the last one which was taken w/ a DFA100/2.8 macro) in RAW (DNG) then converted by ACR at default setting. No further post process done. You can download the original converted JPG files if you like to see the details.

Since these are all converted from RAW files, there are no noise reduction done on these unless ACR did something in default setting.

ISO800:
K7FW0084_dng_s.jpg

Original:
http://img.photobucket.com/albums/v507/fengwei/K7Testing/K7FW0084_dng.jpg

ISO800:
K7FW0098_dng_s.jpg

Original:
http://img.photobucket.com/albums/v507/fengwei/K7Testing/K7FW0098_dng.jpg

ISO800:
K7FW0034_dng_s.jpg

Original:
http://img.photobucket.com/albums/v507/fengwei/K7Testing/K7FW0034_dng.jpg

ISO800:
K7FW0035_dng_s.jpg

Original:
http://img.photobucket.com/albums/v507/fengwei/K7Testing/K7FW0035_dng.jpg

ISO800:
K7FW0038_dng_s.jpg

Original:
http://img.photobucket.com/albums/v507/fengwei/K7Testing/K7FW0038_dng.jpg
 

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