MicrobeHunter.com Microscopy Forum

a simple to make variable oblique filter.it's no idea from myself but I found it a handy tool to share.

this slider comes at the location of the blue filter and can be shifted left and right to ajust the depht.it's made of a piece of a plasic cake box(it's the time of the year ) and some ductape,this can be any color.dimensions 30mm*x150mm.

*depending on your blue filter

That is a very nice effect
Roughly where in the system does this get placed? [Seems a stupid question, but I am not familiar with these microscopes]
I have looked in the Bresser manual but it doesnt really show or seem to mention the blue filter's position.

Chas wrote: ↑

Sun Jan 01, 2023 2:23 pm

That is a very nice effect
Roughly where in the system does this get placed? [Seems a stupid question, but I am not familiar with these microscopes]
I have looked in the Bresser manual but it doesnt really show or seem to mention the blue filter's position.

I hope this helps(I also didn't find it in the manual but had to find out myself)

Ahh, thanks ...I thought that it might have special slot somewhere !
-Its nice that it works with swing out filter holders

Thanks for sharing it. Simple and functional.

Legion air,

I took your idea a bit further. I realized that this can be expanded to produce the dic effect mentioned in the below link.

http://www.microscopy-uk.org.uk/mag/ind ... iydic.html

Here is the normal oblique slider.

20230106_203825 by San Sub, on Flickr

Here is 2 slider used to create below videos. The sliders are stacked together to create a blue oblique light on one side and white light from edge on the other side.

20230106_203756 by San Sub, on Flickr

10x - view it in 4k


40x


Off to create rheinberg filters

Sansub2 wrote: ↑

Sat Jan 07, 2023 2:04 am

Legion air,

I took your idea a bit further. I realized that this can be expanded to produce the dic effect mentioned in the below link.
Here is 2 slider used to create below videos. The sliders are stacked together to create a blue oblique light on one side and white light from edge on the other side.

(video's)

Off to create rheinberg filters

That's a smart idea!
Yesterday I tried a combInation of a (variable) darkfield filter and one of my flashlight filters that I placed directly over the lightsource.

Looks nice. Combine them together or alone in oblique manner produces nice effect. I have multi color films as well and playing with it . They produce nice image up to 20x. 40x is not good in my experiments.

20230107_134545 by San Sub, on Flickr