Is it a Pickering V15 or a crustacion

[cafe latte]

image from post 14:

Post in thread 'Is it a Pickering V15 or a crustacion'

Oct 9, 2026

Check out the image in post 3. These two are in answer to malden’s request to see a larger image.

Photography is the weak link. I’m literally holding up my cell phone to the eyepiece of the microscope. The optics of the cameras auto focus refuse to focus on the point of interest. The actual image as seen through the microscope is of course very sharp.

I’ve seen images on eBay that are quite good. Check out ebay seller kurt710. He has figured...

• Thomas_AA

How the hell do you achieve this depth of field at this magnification??
Something fishy?

My image was far high magnification and lots of depth of field. Reason is big magnification eye piece and lower objective.
Chris

 

[Thomas_AA]

One alternative is a Dino-Eye. Basically, it involves removing the eyepiece and inserting the Dino-Eye in the tube, then connecting the attached USB cable to the computer. Then, focusing on the image is done on the computer screen. I have an older Dino-Eye, but it seems to work pretty well.

Dino-Lite Digital Microscope

www.dino-lite.com

It gets even better using only the objective and projecting the image directly on a camera sensor. Perhaps it is not so common any longer to own a DSLR but a simple adapter without additional glass take advantage of the resolving power of the objective and you get better results in the end, without additonal glass that reduce quality.

 

[sound hound]

It gets even better using only the objective and projecting the image directly on a camera sensor. Perhaps it is not so common any longer to own a DSLR but a simple adapter without additional glass take advantage of the resolving power of the objective and you get better results in the end, without additional glass that reduce quality.

So, with a DSLR body without a lens taking a picture of the specimen using just the objective lens of the microscope? What would be the limit of the magnification that way?

 

[Thomas_AA]

So, with a DSLR body without a lens taking a picture of the specimen using just the objective lens of the microscope? What would be the limit of the magnification that way?

The magnification is 10x. But it is projected on a camera sensor via the microscope eye piece adapter, not your eyes through an ocular. So it is not comparable to the 10x10=100x magnification you normally calculate when using objective+ocular and eyes. I have a 10x standard objective but found a Nikon plan flour 10x/0.30, working distance 17.5 mm which is very good for this purpose. The resolution is ≈1 µm. A 10x or 20x objective is sufficient.

 

[dcmeigs]

This is with stacking.. But if you just want to look at the wear and the "Shure method" patches, you can just take one shot, as in post #32 above.

The reason for taking this photo was to judge zenith error.

There is considerable zenith error in the Pickering too. I’ve never read a spec or manufacturing tolerance for this.

 

[Thomas_AA]

There is considerable zenith error in the Pickering too. I’ve never read a spec or manufacturing tolerance for this.

Orbray has +/-5 degrees.