MicrobeHunter.com Microscopy Forum

Here's my offering...

I'm not clear why you are wanting to attach the camera to a TV adapter, instead of one of the adapters listed?

I just bought one just like this- has anyone used this with a Macbook computer? Can the images/videos go from camera to hard drive via the USB? I had no luck at all with getting a Mac to see the Hayear camera and ended up using Windows software (IC Measure) running on Parallels. My understanding is...

This page explains what is needed:
http://www.alanwood.net/photography/oly ... scope.html

Very good, thank you!
The first LED image shows quite a lot of CA compared to the halogen. Is that banding on the slide?
And it's interesting how differently the colours are rendered in the last pair.

Did you find the 100w BHS to be a microbe-boiler?

I just thought of another question, so sorry! Since my microscope doesn't have any eyepieces and I plan to use it exclusively for photo/video from my DSLR, I'm wondering if there's a connector that allows some adjustable zoom between the eyepiece hole and the camera? From what it looks like, if I d...

Question though: is it possible to remove the bright center spot without having to do post-processing? I tried a few settings on my camera and adjusting the diaphragm and brightness on the microscope without much success. I'm not familiar with Nikon's liveview - can you not control exposure from th...

Despite the CA visible in the high-res image, I remain impressed. ... such performance would have been exceptional with any equipment made a few decades ago ! In the Motic example, there is some slight CA fringing towards the edge of the image, which was not present with the Brunel optic. Also, the...

A potentially interesting direction is the more natural-like balanced illumination from a new kind of LED's... Are you referring to Olympus True Color? https://www.olympus-lifescience.com/en/resources/white-papers/true-color-led/ Hi david_b, not these ones, there was some other brand of LEDs, not a...

Just out of interest, I repeated the test using my current scope, this time removing the eyepiece instead of using the photo tube.
Motic 40x objective

Hobbyst46 wrote: ↑

Sat Jan 04, 2020 9:50 pm

A potentially interesting direction is the more natural-like balanced illumination from a new kind of LED's...

Are you referring to Olympus True Color?
https://www.olympus-lifescience.com/en/ ... color-led/

MichaelG. wrote: ↑

Sat Jan 04, 2020 9:10 pm

Incidentally, I estimate the magnification to be about 51.7x ... so it’s presumably a nominal 50x objective.

Checking the same slide on my current scope, it appears to have been the 40x

The objective is presumably a generic example from one of the Chinese factories - there were no markings to identify the source. Who knows, it could even be the same factory as the OP's Omax. I'm afraid I didn't keep the high res files because the test was redundant after I sold the microscope. I on...

Would be interested to see a side by side comparision of the same slide under LED and Halogen lighting if possible This article is helpful but the images are small: http://www.microscopy-uk.org.uk/mag/indexmag.html?http://www.microscopy-uk.org.uk/mag/artjan14/dw-lightcompare.html To me, some of the ...

I don't recall the objective magnification, but if it helps 1 div = 0.01mm
The microscope I no longer own, but was nothing special - Chinese (Brunel) with plan objectives.

Correct, not parfocal, which was the reason for checking the camera has live view. OP will need to focus the image on his monitor.
His setup is different from mine of course, but if this method doesn't work out at least the cost of trying is only a few $

This is a test using my Canon 5D MkII full frame camera, fitted using a t2 ring and 23.2mm adapter (no relay lens) as shown in your ebay link. Your DX format will have less vignetting; possibly none at all. I found sharpness and resolution to be acceptable, and better than my Chinese 34mp industrial...

Afocal may be possible assuming you have a suitable lens (usualy 40mm pancake). You obviously won't be able to look through the eyepiece while the camera is in place and setting up the camera on a tripod and getting it lined up with the eyepiece every time you want to make a video is going to be a p...

What model Nikon?
Does it have a Live View option - can it be controlled remotely from a computer via USB or wi-fi?

I don't know why the replies to my question had to be so patronising. David ... Given that I probably made most of the replies to your question; I am assuming that you found them patronising ... for which I can only apologise, for that was not my intention at all. In my defence, I can only quote yo...

Scarodactyl wrote: ↑

Tue Nov 12, 2019 3:24 pm

Calling it 'higher resolution' without qualifiers is potentially confusing, since you would use the appropriate relay optics for each sensor.

Yes that's my understanding too.

I don't know why the replies to my question had to be so patronising.

Yes I looked at the data sheet and the one and only mention of resolution is, "Panasonic will start mass production of a new MOS image sensor (MN34110) for digital cameras, a diagonal 7.7 mm (1/2.33-inch type) sensor with 14 megapixel effective resolution, in December 2011 and continues to develop ...

(a) Assuming for a moment you are correct and px size determines resolution - (b) Given that the number of px is roughly the same, the px size of the industrial camera must be much smaller. (a) How very kind of you, David (b) Quite so ... Did you look at the datasheet ? MichaelG. . N.B. The resolut...

I looked at these but did you work out the real resolution? According to the spec: it's a 1/2.3 inch sensor, 14MP How could that be twice the resolution of a 16mp Canon EOS 7D with APS-C sensor? I suspect that it is either this sensor, or an update of same: Note the date https://news.panasonic.com/...

I looked at these but did you work out the real resolution? According to the spec: it's a 1/2.3 inch sensor, 14MP How could that be twice the resolution of a 16mp Canon EOS 7D with APS-C sensor? You might want to look through this article by Charles Krebs: http://krebsmicro.com/relayDSLR/relayoptic...

Glot wrote: ↑

Mon Nov 11, 2019 5:29 am

I looked at these but did you work out the real resolution?

According to the spec: it's a 1/2.3 inch sensor, 14MP

How could that be twice the resolution of a 16mp Canon EOS 7D with APS-C sensor?

Has the account been hacked ?

You should find that just a small section of the field-of-view is imaged by the sensor. i.e. it is ‘cropped’ This might help you get a ‘feel’ for it: https://www.vision-doctor.com/en/camera-technology-basics/sensor-and-pixel-sizes.html MichaelG. Very interesting website, thanks for the link. Why is...

These appear to be photos of your laptop screen?
It's hard to determine what is a camera issue and what might be a screen issue.