MicrobeHunter.com Microscopy Forum

Yes the image circle can be made bigger but is outside its design parameters, so flatness and chromatic aberration are not fully corrected.

The gw eyepieces are limited to a fov of 28mm among others because of the tube diameter of 30mm. Another limit is imposed by the objectives. The NPL are corrected for flatness to about 20mm while the PL objectives are flat up to 28mm. In theory the vario orthomat eyepiece doesn't have that 30mm limi...

Here is a test shot on an ortholux of a water flea with a npl fluotar 25/160 0.17 and the vario orthomat occular set at 5x (1/1250s) DSC04776-03-01.jpeg This one is with npl fluotar 10/170 0.17 the occular set at 5x (1/300s) DSC04774-03.jpeg Light intensity was raised so that the shutter speed was a...

Hi mrsonchus how can i get right from left Did you get an answer to that question? You can unscrew this intermediate lensgroup using one of those 2 prong lens repair tools. What comes out is 37mm wide and has a 0.75mm thread. I thought it was 37x1mm so ordered a 37x1->42x1 mm ring. A threaded 50mm ...