Help crop vs ff DOF and measuring method

Started 1 month ago | Discussions thread
ForumParentFirstPrevious
Flat view
c h u n k
c h u n k Senior Member • Posts: 1,564
Help crop vs ff DOF and measuring method

Just came up on another forum and I forget explanation.

On photo pills app when calculating Dof when you put same lens with same aperture setting and are at same distance comparing a full frame to a crop frame camera the dof on the *crop* calculates to be shallower than on the ff. Why?

They use an 8x10 print with same ppi to measure.

-- hide signature --

**********-*-*-*-*-*-*-*-*-**********
Some of my photos here: https://flic.kr/ps/2i6XL3
“You're off to Great Places! Today is your day! Your mountain is waiting, So... get on your way!” --Dr. Seuss

 c h u n k's gear list:c h u n k's gear list
Canon EOS 70D Canon 6D Mark II Canon EF 85mm f/1.8 USM Canon EF 100mm f/2.8 Macro USM Tamron AF 28-75mm F/2.8 XR Di LD Aspherical (IF) +7 more
ForumParentFirstPrevious
Flat view
ForumParentFirstPrevious
Keyboard shortcuts:
FForum PPrevious NNext WNext unread UUpvote SSubscribe RReply QQuote BBookmark MMy threads
Color scheme? Blue / Yellow