I hope not to make too much of a redundant topic here and hopefully this is posted into the correct category.
I have spoken with a few highly valueable members regarding the subject, but want to get further information relating to the subject of DOF with format sizes larger than 4X5
1) From what I have read, 5X7 and up tends to involve a similar practice as 8X10. I will not be getting into ULF sizes greater than 8X10 for this subject, but rather focus on sizes 5X7-8X10.
Is it true that once you go from 4X5 to 5X7 or 8X10, that working with 5X7/8X10 DOF issues are a wash, meaning, those shooting with 5X7 or 8X10 are going to face similar DOF issues and have to deal with similar consequences OR is DOF an even more difficult issue to deal with when shooting 8X10 vs. 5X7 or even 6.5X8.5?
2) How often are timed exposures required when working with 5X7-8X10, meaning, how often does one need to use a long time exposure with these larger formats? Lets say we have a sunset photo where the sun has just gone down, but there's still quite a good deal of light with tons of beautiful colors and clouds in the composition, with the sea/ocean well lit. Do shots like these require timed exposures due to having to stop down a lot?
3) A slight side topic, but how difficult is it working with movements, especially with an 8X10 camera vs. 5X7 or 4X5?
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