Any idea if these lenses can be used for extreme macro shots

stingOM · Expire: 2012-12-27

I found them in the famous auction site:

WolverineX · Posted: Fri Aug 06, 2010 10:14 pm Post subject:

probably they could be used with bellows...those look like microscope lenses or something like that

stingOM · Expire: 2012-12-27

The advert says 3M copier machine. Cost $100 US. May be cheap if they are well corrected for flat field applications, but the DOF may be razor thin Sad

WolverineX · Posted: Fri Aug 06, 2010 10:43 pm Post subject:

they seem to have only focusing scale, probably no iris, so it would be wide open all the time...and then who knows what is working distance from the subject and would you get focused image for a macro work...

cooltouch · Joined: 15 Jan 2009 Posts: 9098 Location: Houston, Texas

Well the focusing distance is probably a reasonable amount if these lenses came out of a copier. Copier lenses aren't right up next to the glass as I recall.

Note the 21x, 29.7x, 14.8x. What's the likelihood that these are magnification values?

As far as apertures go, it would probably be possible to rig up something like waterhouse stops for them.