Hello,
I think this post will serve as both an introduction and a serious question. I was looking for an IQ1 80 (Contax Mount) for years in the Gear section, finally found one, and now I'm doing test shoots with the family to get an understanding of the best settings.
I'm attaching two pictures to this. They are both shot with the exact same lens, with the exact same settings (A Pentax 90mm @ f2.8 @ ISO50) and were pushed in post about 2 stops. After doing a little bit of searching online, I've heard people say that ISO50 is the sweet spot, so I've been trying to see how far I can push that ISO before I see noise, and for the most part it's been performing pretty well.
This picture came out pretty clean. Again I didn't do anything to it other than push the exposure a couple of stops, and fiddled with the contrast a bit.
This picture, however, didn't do so well. Ignore the warm tones, thats from a filter.
I'm completely lost. I have no idea why the first picture was so much better than the second, when all of the settings were exactly the same. The only thing I can think of is if this back is a little finnicky with temperature like some tend to be. Should I let the back "warm up" before shooting it? I have a few CCD cameras that sometimes show their 'seams' where the sensors were stitched together if I don't let them sit a bit before shooting.
Another thing I thought of was that perhaps the battery power has something to do with it? Maybe my battery was low?
As I'm writing this, I hadn't considered this, but could it be the filter? No way, right?? I'll keep doing tests, but I just wanted to see if you guys had any wisdom to share with me, as to how these two images could be so drastically different under the same exact settings. It's a bit unnerving.
I think this post will serve as both an introduction and a serious question. I was looking for an IQ1 80 (Contax Mount) for years in the Gear section, finally found one, and now I'm doing test shoots with the family to get an understanding of the best settings.
I'm attaching two pictures to this. They are both shot with the exact same lens, with the exact same settings (A Pentax 90mm @ f2.8 @ ISO50) and were pushed in post about 2 stops. After doing a little bit of searching online, I've heard people say that ISO50 is the sweet spot, so I've been trying to see how far I can push that ISO before I see noise, and for the most part it's been performing pretty well.
This picture came out pretty clean. Again I didn't do anything to it other than push the exposure a couple of stops, and fiddled with the contrast a bit.
This picture, however, didn't do so well. Ignore the warm tones, thats from a filter.
I'm completely lost. I have no idea why the first picture was so much better than the second, when all of the settings were exactly the same. The only thing I can think of is if this back is a little finnicky with temperature like some tend to be. Should I let the back "warm up" before shooting it? I have a few CCD cameras that sometimes show their 'seams' where the sensors were stitched together if I don't let them sit a bit before shooting.
Another thing I thought of was that perhaps the battery power has something to do with it? Maybe my battery was low?
As I'm writing this, I hadn't considered this, but could it be the filter? No way, right?? I'll keep doing tests, but I just wanted to see if you guys had any wisdom to share with me, as to how these two images could be so drastically different under the same exact settings. It's a bit unnerving.