|
Forum: Pentax DSLR Discussion
04-30-2012, 09:44 PM
|
| |
Not sure if this is the right place for this, but there has been a lot of discussion here recently regarding the K-7 vs the K-x sensor, so I did a quick shoot to show the differences at ISO 200, 400, 800, 1600, 3200. Low light, just a stupid, dim floor lamp from Ikea directly behind the camera pointed at the ceiling, and my TV behind and to the left of the bobbling Sith lord.
Lens: Pentax-F 50mm f/1.7
Aperture: f/2.0
Spot Metering, exposure locked on the wood candle topper that Darth Vader is sitting on, then focused on his helmet
Shadow Correction: Off
Highlight Correction: Off
High-ISO NR: 1 Medium on both,
High-ISO NR Start on K-7: ISO800
Aperture Priority
Exposure Compensation at 0 for both cameras
Auto white-balance
I think those are the important bits, if anyone wants more info, check out the Exif or ask.
Shots are all handheld, so the lower ISO's probably have a bit of shake-blur. And it looks like I missed focusing on the helmet and got his chest a couple of times... but you should still be able to get an idea for the noise performance. The K-7 photos look a bit more underexposed than the K-x's, but I was just relying on the camera's meters.. I'm not sure what this will do to the noise between them.
They were shot in raw, so they were processed with lightroom, but it was just the default 'develop'.
ISO 100 (K-7)
K-7_ISO100 by alstauffer, on Flickr
ISO 200 (K-7)
K-7_ISO200 by alstauffer, on Flickr
ISO 200 (K-x)
K-x_ISO200 by alstauffer, on Flickr
ISO 400 (K-7)
K-7_ISO400 by alstauffer, on Flickr
ISO 400 (K-x)
K-x_ISO400 by alstauffer, on Flickr
ISO 800 (K-7)
K-7_ISO800 by alstauffer, on Flickr
ISO 800 (K-x)
K-x_ISO800 by alstauffer, on Flickr
ISO 1600 (K-7)
K-7_ISO1600 by alstauffer, on Flickr
ISO 1600 (K-x)
K-x_ISO1600 by alstauffer, on Flickr
ISO 3200 (K-7)
K-7_ISO3200 by alstauffer, on Flickr
ISO 3200 (K-x)
K-x_ISO3200 by alstauffer, on Flickr
ISO 6400 (K-x)
K-x_ISO6400 by alstauffer, on Flickr
ISO 12800 (K-x)
K-x_ISO12800 by alstauffer, on Flickr
I'm getting 100% crops together now.
|
|
Forum: Pentax SLR Lens Discussion
04-19-2012, 06:06 PM
|
| |
I knew that list looked familiar! I was reading that thread this morning and swore that I had basically seen it before, but couldn't remember where..
|
|
Forum: Photo Critique
03-31-2012, 11:42 AM
|
| |
Thank you :)
Thanks for the comments! I see what you mean about them not standing out; next time I will have to be more careful/conscious of the background, since the blurred flowers behind the ones in focus really do distract and make them sort of get lost now that you mention it.
I took another look at the second photo today based on your comments and came up with this:
Party Flower II by alstauffer, on Flickr
You're right, I like it much better now that it's not so centered! I'm not 100% happy with the B&W conversion yet though, since the center of the flower seems to kind of mesh together, but I do like how the shadows of the pistils (I think that's what they're called?) are more prominent against the petal in the black and white version.
|
