Search found 280 matches

by Dave S
Wed Jul 31, 2019 12:57 pm
Forum: Introduce yourself
Topic: New Member from New York
Replies: 8
Views: 7904

Re: New Member from New York

Welcome :)
by Dave S
Fri Jul 19, 2019 4:25 pm
Forum: Camera systems and imaging
Topic: Microscope Cameras?
Replies: 214
Views: 105956

Re: Microscope Cameras?

Nice to see that sort of response from Bresser, but based on my dealings with them, its no surprise. If and when I upgrade my microscope, I would have no hesitation in going back to Bresser Their customer support is a 'breath of fresh air' in today's world. Indeed, we now have a name, and not a gree...
by Dave S
Thu Jul 18, 2019 5:44 pm
Forum: Camera systems and imaging
Topic: Microscope Cameras?
Replies: 214
Views: 105956

Re: Microscope Cameras?

A very informatilve input from apochronaut as always. Thank you.
by Dave S
Thu Jul 18, 2019 5:42 pm
Forum: Camera systems and imaging
Topic: Microscope Cameras?
Replies: 214
Views: 105956

Re: Microscope Cameras?

The big advantage of proper forums like this, that are hosted on a rented server, is that a 'post', and its title/subject is easily found. Wheras with Facebook based forums, 'threads quickly disappear down the pile, likely never to be seen again. FB "forums" are more of an internet chat room, than a...
by Dave S
Thu Jul 18, 2019 1:53 pm
Forum: Camera systems and imaging
Topic: Microscope Cameras?
Replies: 214
Views: 105956

Re: Microscope Cameras?

Roldorf wrote:Wow Dave just think how many views you would have gotten if the title had been 'Which Microscope?'
:lol:
by Dave S
Thu Jul 18, 2019 1:30 pm
Forum: Camera systems and imaging
Topic: Microscope Cameras?
Replies: 214
Views: 105956

Re: Microscope Cameras?

Buying a Chinese microscope can be a bit of a 'lucky dip' Michael, and I read a lot of "end user" reviews, some of which appeared to have been written by people with some idea of what to look for, and based on these, I ruled out several re-branded options, and narrowed it down to a very small number...
by Dave S
Thu Jul 18, 2019 12:05 pm
Forum: Camera systems and imaging
Topic: Microscope Cameras?
Replies: 214
Views: 105956

Re: Microscope Cameras?

Great outcome, Dave ... Thanks for sharing news of your success. With over 7000 views, it seems that the subject matter, and the informative replies, has been of interest to a great many people here. From my point of view, I am now where I want to be with this, and can start to explore the world of...
by Dave S
Wed Jul 17, 2019 3:30 pm
Forum: Camera systems and imaging
Topic: Microscope Cameras?
Replies: 214
Views: 105956

Re: Microscope Cameras?

When I find a subject worth imaging, I'll post some pictures. My newly dug, and filled wildlife pond, is currently too clean and fresh with tap water, to support microscopic wildlife. Once it has gassed off all the Chlorine etc, it shoud provide a convenient source of subject matter. I have introduc...
by Dave S
Wed Jul 17, 2019 1:05 pm
Forum: Camera systems and imaging
Topic: Microscope Cameras?
Replies: 214
Views: 105956

Re: Microscope Cameras?

Ok guys, the final chapter of this story :) I didn't have time to experiment much with the 2.5x eyepiece, as I was off on holiday two days after it arrived, but now having returned, I have. The result is a successful solution to imaging via the photo tube, on the Bresser Researcher Trino Microscope,...
by Dave S
Wed Jul 03, 2019 4:33 pm
Forum: Camera systems and imaging
Topic: Microscope Cameras?
Replies: 214
Views: 105956

Re: Microscope Cameras?

As long as you only have to adjust the focus a small amount you should be fine. CE Absolutely Eddie, it is a very small amount, and I don't see it as an issue. The engineer said to his boss, "that's near enough", to which the boss replied, "I don't want it near enough, I want it exactly right", the...
by Dave S
Wed Jul 03, 2019 12:52 pm
Forum: Camera systems and imaging
Topic: Microscope Cameras?
Replies: 214
Views: 105956

Re: Microscope Cameras?

The 2.5x eyepiece arrived to day, and although I am quite busy with other things at the moment, I couldn't resist taking a quick look. :) I made up a temporary means of holding it in-place inside the Bresser T2 to 23mm adapter, and installed the 4000d on the photo port. A much more acceptable image ...
by Dave S
Tue Jul 02, 2019 5:12 pm
Forum: Digital processing
Topic: Which Software For Image Capture and Editing
Replies: 35
Views: 25565

Re: Which Software For Image Capture and Editing

I guess it must compression Alan, and as with all compression some pixels are sacrificed.
by Dave S
Tue Jul 02, 2019 5:04 pm
Forum: Digital processing
Topic: Which Software For Image Capture and Editing
Replies: 35
Views: 25565

Re: Which Software For Image Capture and Editing

I would say that the CS4 stack, has the edge for sharpness. Not a lot in it, but it is there.

I have been using Irista storage for some considerable time, and find it very good.

I also have all of my photographs backed up to two external drives.
by Dave S
Mon Jul 01, 2019 12:58 pm
Forum: Camera systems and imaging
Topic: Microscope Cameras?
Replies: 214
Views: 105956

Re: Microscope Cameras?

That looks very interesting Alan, and screws into the T2 adapter by the look of it. I would assume that the T2 to 23mm adapter would screw into the opposite side. I have a 2.5x (23mm) relay lens on its way to me, so that I can try it out. It will fit into the longer Bresser 5942000 T2 adapter, in th...
by Dave S
Fri Jun 28, 2019 6:23 pm
Forum: Digital processing
Topic: Which Software For Image Capture and Editing
Replies: 35
Views: 25565

Re: Which Software For Image Capture and Editing

An interesting find Alan, which would seem to fit your needs nicely. With my photography, or astro-imaging, I have never had the need the measure a subject, so this would be something new to me. Image capture, and post capture processing in astro-imaging is far more demanding, and complex, than that...
by Dave S
Fri Jun 28, 2019 9:14 am
Forum: Camera systems and imaging
Topic: Microscope Cameras?
Replies: 214
Views: 105956

Re: Microscope Cameras?

Scarodactyl wrote: Any chance you could link to those posts?
I'm not sure I can find it again, as I surfed through a large number of posts on various forums, and didn't bookmark it.

If I do come across it, I will post the link.
by Dave S
Thu Jun 27, 2019 9:49 am
Forum: Camera systems and imaging
Topic: Microscope Cameras?
Replies: 214
Views: 105956

Re: Microscope Cameras?

Having followed up on those 'links' suggested by 'hobby', which were quite informative, I started searching through old posts on the subject using a DSLR for photography via the photo tube on a Trioc microscope. It was very useful in saving me from risking £103 on the AMscope DSLR adapter, with its ...
by Dave S
Wed Jun 26, 2019 7:38 pm
Forum: Camera systems and imaging
Topic: Microscope Cameras?
Replies: 214
Views: 105956

Re: Microscope Cameras?

Thanks for that, I'll have a read. :)
by Dave S
Wed Jun 26, 2019 7:21 pm
Forum: Camera systems and imaging
Topic: Microscope Cameras?
Replies: 214
Views: 105956

Re: Microscope Cameras?

I made up a crude adapter to place the 18-55 lens on the eos4000d against the 10x eyepiece in the photo tube (afocal), and the image was not as that seen visually, but quite magnified by the sensor. Dave, for afocal setup, the appropriate focal length of the canera lens, for an APSC sensor, when th...
by Dave S
Wed Jun 26, 2019 3:00 pm
Forum: Camera systems and imaging
Topic: Microscope Cameras?
Replies: 214
Views: 105956

Re: Microscope Cameras?

I am now fairly confident that the problem is Bresser's suggestion of using a 10x eyepiece between the photo tube, and the camera, which then adds significant magnification of the image as produced by the APS-C sensor. I can see where Bresser's 10x eyepiece idea comes from, as when the eyepiece is p...
by Dave S
Wed Jun 26, 2019 11:40 am
Forum: Camera systems and imaging
Topic: Microscope Cameras?
Replies: 214
Views: 105956

Re: Microscope Cameras?

I have just tried moving the 10x eyepiece to the other end of the T2 adapter (nearer to the sensor), and while this gives a small increase in the field of view, it introduced severe vignetting. I have updated Bresser on this finding. I should add that images taken with my iPhone at the bino head, ar...
by Dave S
Wed Jun 26, 2019 10:43 am
Forum: Camera systems and imaging
Topic: Microscope Cameras?
Replies: 214
Views: 105956

Re: Microscope Cameras?

My response to Bresser, copied below: Thank you for your prompt reply, which is much appreciated. The image at the camera, is not completely parfocal with the eyepiece, and the stage has to be lowered slightly from the visual view, to achieve best focus on the camera's sensor. The 10x eyepiece insta...
by Dave S
Wed Jun 26, 2019 10:40 am
Forum: Camera systems and imaging
Topic: Microscope Cameras?
Replies: 214
Views: 105956

Re: Microscope Cameras?

As usual, a prompt reply from Bresser, which is copied below: Hello Dave, the camera does have a smaller depth of field as the eyepieces (and our eyes) have. So it may appear that the sharpness is lower. You could also check if the image is really parfocal or if ther is still a slight defocus. Try t...
by Dave S
Wed Jun 26, 2019 8:57 am
Forum: Camera systems and imaging
Topic: Microscope Cameras?
Replies: 214
Views: 105956

Re: Microscope Cameras?

From what you write and considering the modest numbers of microscope imaging systems compared to mass consumer goods, I wonder if a lot of companies are still amortizing the engineering costs of older designs, or copying designs that someone else paid for long ago. Given that the Chinese are famous...
by Dave S
Wed Jun 26, 2019 8:54 am
Forum: Camera systems and imaging
Topic: Microscope Cameras?
Replies: 214
Views: 105956

Re: Microscope Cameras?

Duplicate post deleted.
by Dave S
Wed Jun 26, 2019 8:53 am
Forum: Camera systems and imaging
Topic: Microscope Cameras?
Replies: 214
Views: 105956

Re: Microscope Cameras?

If you alter the position of the tape wrapped lens inside the tube does it alter the field of view or does it just alter the focus? I don't know Alan, but I will experiment. As I said earlier, if I put the third 10x ocular in the photo tube, it is perfectly parfocal with the 10x oculars in the bino...
by Dave S
Tue Jun 25, 2019 8:54 pm
Forum: Camera systems and imaging
Topic: Microscope Cameras?
Replies: 214
Views: 105956

Re: Microscope Cameras?

Yes they do, via Amazon UK.

£104 + £29 delivery :o

Aleady have T2 mount to 23.2mm adapter, just need a 2x 23mm relay lens.

Less than £10 from China, via ebay, but delivery mid July.
by Dave S
Tue Jun 25, 2019 8:06 pm
Forum: Camera systems and imaging
Topic: Microscope Cameras?
Replies: 214
Views: 105956

Re: Microscope Cameras?

The struggle to get the best image and FOV coverage upon the marriage of a digital camera to microscope has been reflected in many discussions, and is still active. That is why some folks (many IMO) prefer afocal setups. I believe that Bresser and other makers optimize their camera-scope interface ...
by Dave S
Tue Jun 25, 2019 7:31 pm
Forum: Camera systems and imaging
Topic: Microscope Cameras?
Replies: 214
Views: 105956

Re: Microscope Cameras?

Your Bresser objectives fit 160mm tube length. Hence, there is a chance that they are corrected to minimize aberrations only with corresponding eyepieces. The 10X Bresser eyepiece that you have experimented with is probably compatible with the objectives. I do not see a 2X relay lens in the Bresser...