After several months of patient waiting i now have a set of microscope objectives (4x, 10x, 40x and 100x oil) and an m42 to rms ring (i wanted it for a mounting platform rather than for my current camera)
So far i have significantly higher magnification than was ever possible with my Helios 442

Taken with 4x lens 

Taken with 10x lens 
I am having trouble with the 40x and 100x objectives though, i am quite sure that the focusing strength of the lenses are high enough that i need to position the sensor even further back. I made this assumption when i looked at the camera configurations for trinocular microscopes. So far im getting some awesome results, going even further i purchased a slide micrometer to determine the scale.

Helios 442 

4x Objective 

10x Objective 
With a bit of rough calculations it works out to 3.5 px \ 0.01mm for the Helios, 10.7 px \ 0.01mm for the 4x and 26.5 px \ 0.01mm for the 10x objective... i really want to get the 40x and 100x objectives working now.
Could you label what the forth and fifth pictures are?
ReplyDeleteI'm not entirely sure myself they were bare unlabeled dies
ReplyDeletemight be able to find an identifying label like on the nec 8749hd microcontroller (copy of intel MCS48)