Originally posted by pschlute Looking at a 16x zoom on the camera LCD screen (K-1) is zooming to over 100%. You will not get an accurate representation of your picture. Stick to 10x (100%)
But for critical analysis you want to be viewing on a computer screen.
You gave me an idea. I could shoot a scene at different apertures, make a 11x16" print with the f-calc settings, and see which one viewed in the camera best matches the print.
---------- Post added 11-07-2017 at 09:21 AM ----------
Originally posted by TonyW Basing the needs for depth of field on interpreting from the camera lens markings and stopping down further I think is still sound practice and you may find that you get more accuracy by using charts and focusing on a specific distance (which may be estimated or even better assessed using an accurate rangefinder). All this of course assumes you have the time and inclination to go to this trouble.
Years ago when I was using a view camera I saw a pocket device that worked like a rangefinder camera. You would align the points for the subject you wanted in sharp focus and it would indicate the distance. I should have bought it. For even when I switched to Medium Format the bellows focusing was difficult for calculating the distance. Now I have the DFA 28-105 I have to guess the distance again.
---------- Post added 11-07-2017 at 09:33 AM ----------
Originally posted by GUB Look I agree that all our pixel peeping is creating overkill emphasis on sharpness. But one thing I struggle with is when you check out the DofMaster calculator you find the circle of confusion applied to FF (D800 coz K1 isn't there) is .03mm.
Online Depth of Field Calculator
If you calculate the size of a K1 pixel (.005mm) then you can see that a coc blur covering almost 30 pixels is considered acceptable. I guess that we probably lost the plot in the drive for more megapixels. But personally when I am working something out I halve the coc which is about 7 pixels covered and allows for a fair bit of cropping.
.03 worked well with 35mm film, but it could be the case that the entire image was less sharp than with today's FF digital cameras. Without cropping and at 10x print sizes, it still might be sufficient. One thing I have found that even focused at infinity, distant objects like trees do not reproduce too crisp due to atmospheric haze, which can add to the depth perception when viewing.
Extreme DOP works best when large object like mountains are in the distance, and smaller objects are up close. There is still the advantage of the view camera movements in many cases.