Hi, I don't have an image, it was that bad. I had the same experience as Pau had http://www.photomacrography.net/forum/viewtopic.php?f=25&t=32061&p=197732&hilit=az100#p197732 But I don't think it is an insurmountable problem. Someone will evenually find a suitable camera lens setup. Also, the object...

As Pau said, the 4x and 5x NEED the lambda/4 plates to correct spherical aberration (they have high NA and designed with the cap, so they would image poorly without the cap present). The 2x is designed to work without a cap. Several people here had poor results by just attaching one of the AZ object...

Hi Pau, Hi Steve, Thank you for the test, Pau. That looks very similar to the resuts from my lens. I conclude that the "hard stop" is normal for this lens and not a defect. It would be reassuring if it went slightly past infinity (like later lenses) so the user could be sure that objects at the hori...

Hi Colin,

Are you using immersion oil for the condenser front lens? I assume you do, otherwise you won't get darkfield illmination.

Regards, Ichty

Hi Pau,

Thanks. If you find the time to test it, that would be very helpful. My feeling is that my copy of the lens falls JUST short of reaching infinity focus wide open.

Cheers, Ichty

Any ideas on where they could be coming from and how to resolve it? Thanks in advance for your help. Hi, Yeah, rotate all the components on you microscope individually and track down the location of the dust, but it's likely to be on the sensor. It can be removed mechanically (lots of different met...

Hi, I'm currently testing a Canon 50mm f2.5 Macro lens https://www.canon.co.uk/lenses/ef-50mm-f-2-5-compact-macro-lens/ My copy seems to have a hard stop at infinity in the same way that older manual lenses used to have. It that the case here or a defect? The lens is so old that reviews don't mentio...

Hi,

Looks like there's no 108MP RAW output. The RAW is only available after pixel binning at 12 MP: https://www.cnet.com/news/samsung-s21-u ... -the-dark/

leonardturner wrote: ↑

Sun Mar 07, 2021 8:33 am

hampered by

Do you mean "hemp"?

Yeah, the opening of a 27 mm thread is probably too small. Still a good find for the bell adapter. Theoretically, you could use the black cylinder but it's not easy. You would have to drill several holes in a filter ring adapter, then use the screw holes on top of the cylinder (the ones that present...

I have the grey monotube (47 30 20) for the Zeiss, I need to find that clamp adapter. Looks like the clamp adapters just clamp onto the outside of the monotube? Then I adjust their position for being parafocal? Not as hard of a setup as I was expecting, thankfully. Now that I know that my setup was...

If I wanted the absolute best image quality and sharpness, which would be the best way to go? The Neofluar objectives you have aren't plan lenses. So you can only use the center of the image anyway. Many afocal adaptations will give you excellent center sharpness and contrast, even the simpler and ...

I own 2 microscopes, a Zeiss Universal with a set of Phase Neofluar objectives is the best way to capture images and video with the trinocular ports of my microscopes. Hi Colin, The Zeiss optics require compensating eyepieces, so the only way to adapt to the Universal is the "afocal" method. https:...

Hi Owen, I word of caution: Contrary to what you sometimes read (and what I wrote in the past), you can't use the autofocus when using the EF 40mm/2.8 reversed. Not only could it damage the motor, it can also stall the lens and render it unresponsive. I only got mine to work again but only with a lo...

Hi, I used the exact combination, 500D + EL-Nikkor 50/2.8N. Optically, it is very good. You get a lot of useful information on magnification ratios etc. here: http://coinimaging.com/nikon_el50-28n.html The EL-Nikkor is a £50 investment, you can't really go wrong with it. Personally, I found focussin...