Macro_Cosmos wrote: ↑

Thu Aug 06, 2020 12:26 pm

Honestly speaking, the best way would be the ruler liveview method.

True. But for a starting point the calculation is useful.

It is measured from the sensor to thread shoulder, BUT it is not 160mm. Instead it is 160mm-10mm = 150mm.

The resolution calculation from Macro_Cosmos also assumes that the sharp image from the objective always covers the sensor. When it does not with the shorter tube, the final resolution can increase with the longer tube lens. Combine that with low resolution FF sensor and the above-mentioned 20x 0.75...

I decided to use T2 as intermediate thread. So all the tube lenses have step-down ring to T2 (so far all are larger) and the microscope adapters use that, so I only need three ... so far. Customphototools mentioned above should have the T2 to microscope adapters in stock and the step-down rings you ...

Ill add another set of pictures with the same lens. In these the lens was used stacked on Schneider-Kreuznach Componon 150/5.6. (old black metal version with chrome filter thread) The resulting magnification is pretty close (3.75). - both lenses stopped down half stop - Canon EOS RP (full frame, 624...

I'll have to try mine on extension then.

(Not impossible with enough magnification AS LONG AS they are fresh. Old ones - forget it.)

NikonUser wrote: ↑

Thu Jul 23, 2020 4:52 am

Amazing that JKT can spread such small moths.

Sometimes I get lucky.

Was the APO-Componon with extension or stacked? If former, I'll have to try it.

You really should switch systems as this is a good territory for Canon MP-E65. :wink: 02721 D6c Coleophora deauratella (170720)(Taalintehdas) [Id J Tabell].jpg Admittedly it depends on the resolution you want and the size of the moth. I only aim for 3000 px wide pictures, so MP-E can handle this and...

You'd get that effect if you were using mirror lock-up in camera, but StackShot wasn't configured to use two trigger signals for single shot.

The ocular lens is after the image formed by the objective (or objective & tube lens for infinity type). The camera sensor catches that real image.

MarkSturtevant wrote: ↑

Thu Jul 02, 2020 5:38 am

I am reluctant to use a generator b/c of the noise.

I don't know just how silent you'd want, but the quality units have pretty low noise levels. My Honda EU10 won't bother anyone 100 m away. Admittedly good battery and LEDs would be a very nice combination.

I don't have optimal result for you, but I have had similar issues with the RP. The settings I had to use in order to eliminate missing shots made the mirrorless actually slower than 7D.

IF I think I have a solution, I'll post the sketches for comments. Way cheaper that way.

I agree that the SM2 solution is very handy ... as long as both lenses fit inside the tube. For the Macro Irises that is likely the case. The adjustment and lens change is not as easy I would like, though. The problem with the V38 to V38 adapter is that it is fixed length while the lenses are not. S...

RobertOToole wrote:Also V38 to V38 would be a good one also, for lens stacking coupling.

For Makro Iris lenses 37mm to 37mm reversing ring should work as well and that is coming soon.