questions

[SlightlyHuman]

building my own DOF adapter, probably gonna go with a vibrating adapter, I cant find the right glass for static which i would prefer (also i suck at trying to apply the wax)

Ive done a bunch of reading on achromats and I still dont really understand what they do, am i going to NEED one? or can i get by without it?

also, where is a good place to get the little pancake motors for the vibrating adapters?

if anyone on here has one they would sell PM me.

Thanks

[stevenbruce]

These questions have probably been answered before so you could try searching this sub forum. Anyway:

Achromat
"Some cameras have a minimum focusing distance that is too long to allow them to fill the frame with the GG. In this case an achromat is needed. The achromatic lens allows the camera to zoom into the GG easily, as well as helping to minimise some problems caused by the lens working in extreme macro; such as barrel distortion or chromatic aberration."

For most cameras you need the achromat.

Motor:
"In my experience the pancake style motors are the most effective and i would particularly reccomend this one from solarbotic (http://www.solarbotics.com/products/vpm2/)."

These are from my short article here:
http://stevenbrace.co.uk/35mm/