peanutbutter&jelly
Member
Hey all,
I'm new to this forum, and my experience push-processing a roll of HP5 to what I think was 12,800 got me curious as to if I really did develop the image at 12,800 or if there's something else to it. I'm still a beginner to the whole dev process.
As background: when I shot the roll, I used a light meter and set it to 6400 ISO (since that was the highest it went), and then I moved shutter speed or aperture one stop over to compensate for 12800, and from there I took pictures accordingly. When I got home, the only developer I had was D-76, and so I guesstimated dev times based on an exponential chart I drew out.
What I came to was that at 68F, dev time for 12800 on a roll of HP5 was about 27:30 with initial 30 seconds then 10 second agitation every minute. So I did that, and my pictures came out surprisingly well. Everything below had very little to no touching up on Photoshop's Levels. Was this just beginner's luck? Not using this as self promo but more to understand if saying what ISO you shot at is purely arbitrary or not. Check it out:
I'm new to this forum, and my experience push-processing a roll of HP5 to what I think was 12,800 got me curious as to if I really did develop the image at 12,800 or if there's something else to it. I'm still a beginner to the whole dev process.
As background: when I shot the roll, I used a light meter and set it to 6400 ISO (since that was the highest it went), and then I moved shutter speed or aperture one stop over to compensate for 12800, and from there I took pictures accordingly. When I got home, the only developer I had was D-76, and so I guesstimated dev times based on an exponential chart I drew out.
What I came to was that at 68F, dev time for 12800 on a roll of HP5 was about 27:30 with initial 30 seconds then 10 second agitation every minute. So I did that, and my pictures came out surprisingly well. Everything below had very little to no touching up on Photoshop's Levels. Was this just beginner's luck? Not using this as self promo but more to understand if saying what ISO you shot at is purely arbitrary or not. Check it out:


