Search found 14 matches

by Thl05
Sat Aug 01, 2020 12:27 pm
Forum: Beginners Micro
Topic: Meopta lens problems
Replies: 6
Views: 1467

Re: Meopta lens problems

kutilka wrote:
Tue Jul 28, 2020 12:03 am
Previously, a 3: 1 mixture of diethyl ether and ethanol was used in Meopta to clean optics. Acetone + ethanol of about 9: 1 is now used.
Thank you for the information.
To be sure I am understanding correctly : they now use (Acetone+ethanol 9: 1) on both old and new lenses ?
by Thl05
Thu Jul 16, 2020 12:00 pm
Forum: Beginners Micro
Topic: Objective projection, SwiftSW350T on to camera (Canon) sensor
Replies: 14
Views: 1199

Re: Objective projection, SwiftSW350T on to camera (Canon) sensor

Using this Meopta has become less desirable since I have noticed another problem (foible, feature), the turret/head etc plus anything weighty (like the dslr+bits) is carried upon the focusing mechanism which makes the focus mechanism stiff. Even worse, any slight pressure or disturbance to the dslr,...
by Thl05
Thu Jul 16, 2020 10:50 am
Forum: Beginners Micro
Topic: Meopta lens problems
Replies: 6
Views: 1467

Re: Meopta lens problems

Thank you both, mold and delamination sound scarily terminal ! and I promise never ever to let acetone anywhere near them. I suspected that may be contraindicated, hence the question but that is all that I have at the moment except household detergent ! so will give them a reprieve for now. Thanks f...
by Thl05
Wed Jul 15, 2020 11:44 pm
Forum: Beginners Micro
Topic: Objective projection, SwiftSW350T on to camera (Canon) sensor
Replies: 14
Views: 1199

Re: Objective projection, SwiftSW350T on to camera (Canon) sensor

if no-one else chimes in, I have put the promised comparison pics in a new topic so that others can see that we have moved on a bit from Swifts :) ! Still no joy at undoing the dovetail, just no way to get a good grip on it, and I dont (yet) want to risk doing damage that could not be undone by som...
by Thl05
Wed Jul 15, 2020 11:35 pm
Forum: Beginners Micro
Topic: Meopta lens problems
Replies: 6
Views: 1467

Meopta lens problems

My Meopta objectives have poor contrast. Resolution seems to be ok? but it is like looking through a mist ! Do they 'just' need cleaning. If so is there a good "How to" ? Not sure of its vintage, guess at 60s or earlier, would acetone be ok ? The 1st pic is of the Meopta 10:1 and the 2nd is another1...
by Thl05
Wed Jul 15, 2020 12:32 pm
Forum: Beginners Micro
Topic: staining blood with giemsa
Replies: 19
Views: 1822

Re: staining blood with giemsa

Hi, as you may have seen in a topic nearby I am a bit new to all this so please excuse me I dont want to teach granny about eggs ! However, by coincidence, while exploring youtubes about my other problems, I came across this one by Oliver Kim (aka Microbehunter) in which he talks (8 minutes in) abou...
by Thl05
Wed Jul 15, 2020 7:05 am
Forum: Beginners Micro
Topic: Objective projection, SwiftSW350T on to camera (Canon) sensor
Replies: 14
Views: 1199

Re: (Updated)Objective projection SwiftSW350T on to camera (Canon) sensor

Once again you have given me lots to think upon and things to try, thank you very much. It is reassuring know that I was not a million miles out with my projection distance, I was begining to think that it might have been one of the causes of my difficulties and that I may have needed to go back and...
by Thl05
Tue Jul 14, 2020 6:32 pm
Forum: Beginners Micro
Topic: Objective projection, SwiftSW350T on to camera (Canon) sensor
Replies: 14
Views: 1199

Re: (Updated)Objective projection SwiftSW350T on to camera (Canon) sensor

Without a compensating eyepiece, your 40:1 should still give a sharp image! Sharp, but with sharp colour fringes. If the image is misty, there might be other problems. Fascinating stuff, much to learn and much to come back to later (especially the dovetail/raf bit) and "the other problems" are most...
by Thl05
Tue Jul 14, 2020 11:48 am
Forum: Beginners Micro
Topic: Objective projection, SwiftSW350T on to camera (Canon) sensor
Replies: 14
Views: 1199

Re: (Updated)Objective projection SwiftSW350T on to camera (Canon) sensor

The low magnification achromatic objectives on your microscope might work without compensating eyepieces, but the 40 and 100 won't. Part2 after evening meal :) Do you mean those specific objectives in my picture ? Or 40x and 100x in general ?? If the latter how do the low end Swifts and the like do...
by Thl05
Tue Jul 14, 2020 11:00 am
Forum: Beginners Micro
Topic: Objective projection, SwiftSW350T on to camera (Canon) sensor
Replies: 14
Views: 1199

Re: (Updated)Objective projection SwiftSW350T on to camera (Canon) sensor

Thanks for your continuing interesting thoughts. Part1 (part2 to follow later) Ah! I think you must be telepathic :) I was going to post further down the line about the results that I wasnt getting with the 40x ! Yes, very mushy in the middle and out of focus everywhere else !!! I suspected this was...
by Thl05
Tue Jul 14, 2020 8:29 am
Forum: Beginners Micro
Topic: Objective projection, SwiftSW350T on to camera (Canon) sensor
Replies: 14
Views: 1199

Re: (Updated)Objective projection SwiftSW350T on to camera (Canon) sensor

We would certainly try to help you if we knew the answer :cry: I suspect that very few people here have this microscope. eyepieces (afocal) or projectives to magnify the intermediate image for photography. the use of some custom-made adapters. What's wrong with the Meopta stand? Hi, Thanks for your...
by Thl05
Mon Jul 13, 2020 7:44 pm
Forum: Beginners Micro
Topic: Objective projection, SwiftSW350T on to camera (Canon) sensor
Replies: 14
Views: 1199

Re: (Updated)Objective projection SwiftSW350T on to camera (Canon) sensor

76 views (as I type) and no one has one (or not admitting to it !) which tells me I should not even contemplate getting one !!!

Or maybe I should, to find out what is so wrong with it(them) !
by Thl05
Fri Jul 10, 2020 6:04 am
Forum: Beginners Micro
Topic: Objective projection, SwiftSW350T on to camera (Canon) sensor
Replies: 14
Views: 1199

Re: Update_SwiftSW350T to camera (Canon)

Here is a pic from their online manual to illustrate what I am asking. Can any of the bits indicated in green be easily removed (without special tools and risk of damage !) to allow access to the prime focus and get it onto a Canon sensor (using a T adapter or something similar) ? Thanks for any hel...
by Thl05
Thu Jul 09, 2020 12:25 pm
Forum: Beginners Micro
Topic: Objective projection, SwiftSW350T on to camera (Canon) sensor
Replies: 14
Views: 1199

Objective projection, SwiftSW350T on to camera (Canon) sensor

Hello all, I have been reading and absorbing the forum for a little while, very informative ! Now I have a question :) I have searched the forum (and elsewhere) for info on the Swift SW350T trinocular but nothing found. Can anyone tell me about the detail of the trinocular tube on the 350T (or380T) ...