Macro lense for a Canon crop sensor camera
Nov 30, 2017 18:25:00 #
Picture Taker wrote:
Fo micro a 2.8 setting might give the depth of field the thickness of a sheet of paper. No that good for general use.
The faster a lens is, PT, the better DOF it will give you at intermediate settings. If you stop down too far, diffraction sets in ....
You want a macro to be as fast as possible, in order to give you greater DOF at f8 or f11 ... before problems occur ....
This is why I always recommend the Tamron 60 f2 Macro ... the fastest one you can get ... and the best all-purpose Macro out there ....
Nov 30, 2017 18:32:53 #
Nov 30, 2017 18:44:58 #
Picture Taker wrote:
Fo micro a 2.8 setting might give the depth of field the thickness of a sheet of paper. No that good for general use.
In certain situations, you want to have the most light available for macros .... thus, the faster the aperture, the better off you are ....
Nov 30, 2017 18:47:15 #
Chris T, I think you are mistaken that DOF at stopped down apertures depends at all on the maximum aperture. DOF depends only on focal length and lens opening.
Nov 30, 2017 19:40:19 #
Bob Boner wrote:
Chris T, I think you are mistaken that DOF at stopped down apertures depends at all on the maximum aperture. DOF depends only on focal length and lens opening.
Okay ... lens opening, then ... isn't that the same thing as fastest aperture?
Nov 30, 2017 20:40:44 #
Chris T wrote:
Okay ... lens opening, then ... isn't that the same thing as fastest aperture?
No.
Nov 30, 2017 20:52:21 #
Peterff wrote:
No.
If you say so, Peter ...
Excuse me ...
Have to clean out the hamster cages ....
Nov 30, 2017 21:02:03 #
Chris T wrote:
If you say so, Peter ...
Excuse me ...
Have to clean out the hamster cages ....
Excuse me ...
Have to clean out the hamster cages ....
Ha ha! Be nice to the little critters!
Nov 30, 2017 22:35:49 #
Peterff wrote:
Ha ha! Be nice to the little critters!
Yeah, I was ....
One of them had gotten the wheel spinning ...
I was staring at it for a while, and it got me dizzy ....
So I had to lie down ....
Now, where were we?
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