universal filter - photos and images

[Litonotus]

here is what I promised, I've been waiting for spring and better specimens. I tried to do a comparison showing all the effects but it is really hard when you just place camera on the eyepiece, so that has to wait for future.

here is how they look like, as you can see I did not change much. I use mostly the one on the left side, another two allow to choose illumination direction (top or bottom), last two are some unfinished experiments - I tried to make them even more universal (:

the filter is placed under the condenser what allows left-right (contrast adjustment) and forwards-backwards (background darkness adjustment) movement.

they work great on lower magnifications from 5 to 20x, and sometimes on 40x objecitve.

some test images, even darkfield is possible (:


and my choice of some of the best images taken with this filter, another are here: http://www.photomacrography.net/forum/v ... hp?t=16445


thank you for all your comments and appreciation for my invention (:

[RogelioMoreno]

Thank you for posting the pictures.

Rogelio

[arturoag75]

many thanks for description..i'm very fascinated!
best
arturo

[Cactusdave]

Thanks very much for the details. Are you printing the grey gradient filters as I think you were in the earlier version? Your illustrations show this filter really does a good job. Congratulations.

[Litonotus]

yep, they are printed in the same way and put together by using a black sticky foil (: