Hi,
i have a raynox msn505 macrolens which i used to find out that ants have hairy armpits yesterday
(well, i dont know if its true, but they do have a lot of facial hair, which i was able to see, also i could see their mouths gnawing on food.) basically half the regular ant is in the fov when u use this supermacro.
well anyways, in order to use this lens properly you have to set the zoom to the biggest setting, which is 12x in the case of my s3is. the dof already being paperthin (read the whole article here:
Lensmateonline - Canon PowerShot S5/S3/S2 IS Macro ) it is VERY hard focusing. so today i wanted to test focusbracketing (for stacking), which worked ok without the lens (in widest setting) with a step size of 1 (1 millimeter).
however when at the full tele end (using the macrolens) , this doesnt work. only a small part of a coin was in focus, and it was always the same part. do i have to apply different values or is it better building a kind of dolly for either the subject or the camera (and using a fixed focus)?
i could close the aperture more (via overrides, hey i'm at long zoom range) but i get the feeling this doesnt increase dof either. anyways, i need a method to do focus bracketing/stacketing.
attached is a sample picture of a chip from an old motherboard. it is out of focus, because i couldnt keep my hands steady with that shallow dof (obviously i will have to use a fixed position later). the other two pics have been shot using normal macro mode (without the extra lens and without zooming) and the last one is without macromode, just a wideangle shot from the motherboard. all shots are 100% crops.
