Anyone know where can I get a DOF table or calculator?
Want to try something different but cannot afford the trial-and-error style this time.
Most lens manual has a DOF table, you also can search from the net, commercially made one is not that cheap, I bought mine from the maker of ExpoDisc, but don't know where I keep it liao.Originally Posted by CYRN
Hope this help
probably due to the 1.5 crop? DOf could be enlarged?Originally Posted by CYRN
format size and focal length of the lens does matter.Originally Posted by CYRN
Should be different, different circle of confusion.Originally Posted by CYRN
sometimes i wonder how useful it is when u are using it on a modern 35mm where the distance marking is so "agar agar"..
how can one make precise DOF measurement on it ?
unlike those older cameras or monorails with a detailed focusing marks..
cuz of the examples of using digicams to take macro... even @ f8... the DOF is still plenty... I assumed that FLM dosen't matter cus it's tied to the focal length of the lens... in the case of digicams, they are around 8mm to 20mm equivilant... so DOF is as calculatedOriginally Posted by catchlights
If you'll notice, DOF cover 1/3 distance in front of the subject, and 2/3 distance be hide the subject. You also can use the DOF preview of the camera.
Originally Posted by kex
Mind pm me your lab address? may need you to help to scan some negatives.
somewhere in here: at least 2 of them, good reading on hyperfocal dist too....Originally Posted by CYRN
FLM matters for the CoC...dun ask me to explain the physics of it....
sorry, 4got to give u the links...hahahaha
Half right Format size "DOESN"T" affect but focal length "DOES" affect. A large format 90mm lenes and small format 90mm lenes have the same DOF coverage at the same distance. Because the focal length of the 90mm on the small format is a tele lens and on the large format the 90mm is a wide angle lens so you see different. That why large format lens have very small maxium aperture opening usually from F5.6 up ward. A 90mm will have more DOF coverage then a 135mm at the distance.Originally Posted by catchlights
Yes, thanks for pointing out my mistake.Originally Posted by singscott
same angles coverage of lens with different format camera have different DOF coverage.
and same angles coverage does not = to same focal lenght on different format.