Search found 3640 matches

by mrsonchus
Sat Mar 28, 2020 10:48 am
Forum: Beginner's corner
Topic: Amscope T720 vs. Swift SW380T
Replies: 12
Views: 199

Re: Amscope T720 vs. Swift SW380T

Hi, this forum is packed with very knowledgeable folk re equipment. Yours is an often-asked question of course, and a look through past posts - many very recent or active, will get you off to an interesting and useful start. My one piece of advice is to buy nothing until you've spent a little time w...
by mrsonchus
Tue Mar 24, 2020 9:21 am
Forum: Miscellaneous
Topic: Large SEM of Paralia sulcata
Replies: 7
Views: 131

Re: Large SEM of Paralia sulcata

Urk - those SEM images are quite stunning - the detail & complexity is extraordinary. BUT, all you diatom-botherers must not let this discourage you, rather let it enliven, augment and increase your enjoyment - every session of observation has the chance of revealing that known but as-yet unseen ext...
by mrsonchus
Fri Mar 20, 2020 9:30 pm
Forum: Pictures and Videos
Topic: Close-up of a stentor sp.
Replies: 8
Views: 324

Re: Close-up of a stentor sp.

Nice video - very crisp and some good detail.
by mrsonchus
Sun Mar 15, 2020 12:50 am
Forum: Beginner's corner
Topic: What is this and what is it for?
Replies: 2
Views: 980

Re: What is this and what is it for?

Aha! It's a rudimentary hand-section cutter - for soft stems of small diameter. Push a small soft stem piece through one of the holes, from below. Set it to just be sticking up above the hole's side by about 1mm then turn the blade-holding part to cut a section. Place under your 'scope - in a drop o...
by mrsonchus
Wed Mar 04, 2020 4:49 pm
Forum: Specimens, samples and slides
Topic: Moss leaves in glycerin: how to prevent cells from collapsing?
Replies: 9
Views: 4699

Re: Moss leaves in glycerin: how to prevent cells from collapsing?

You may try a weak glycerin/water mix - perhaps 1:10 (v/v) - but with a glycerin content that is enough to cover the sample if used on it's own. The idea being to put the leaves into the mixture then allow the water content to slowly evaporate - thus gradually increasing the concentration of glyceri...
by mrsonchus
Wed Mar 04, 2020 12:13 pm
Forum: Identification help
Topic: Entomoneis
Replies: 10
Views: 2249

Re: Entomoneis

Urk - I see what you mean - can't open it. AVS doc converter says it's an invalid or broken file also.... I'll have a closer look at it and get back.
by mrsonchus
Wed Mar 04, 2020 12:07 pm
Forum: Identification help
Topic: Entomoneis
Replies: 10
Views: 2249

Re: Entomoneis

Once downloaded it'll open with Chrome?
by mrsonchus
Wed Mar 04, 2020 11:52 am
Forum: Identification help
Topic: Entomoneis
Replies: 10
Views: 2249

Re: Entomoneis

Hi 75' Here's a link to the pdf in my shared g-drive... When you click on the link the message will tell you that the document can't be viewed - but it CAN be downloaded - look top RHS for the download icon on this dark message screen - it'll download to your machine for you - I hope... See this scr...
by mrsonchus
Sat Feb 29, 2020 6:55 pm
Forum: Pictures and Videos
Topic: More living diatoms II
Replies: 7
Views: 1260

Re: More living diatoms II

A really nice set of images!
by mrsonchus
Thu Feb 27, 2020 6:57 pm
Forum: Beginner's corner
Topic: Disadvantages to Phase Contrast objectives?
Replies: 19
Views: 4087

Re: Disadvantages to Phase Contrast objectives?

Hi Apo' and Hobby' - I'd agree - definite differences - perhaps made a tad murky by jpg, but they exist. Good enough though for the purchase of a phase objective whilst waiting for a non-phase (assuming the use of phase is also relevant of course). What we need is some better images for comparison -...
by mrsonchus
Thu Feb 27, 2020 2:41 pm
Forum: Beginner's corner
Topic: Disadvantages to Phase Contrast objectives?
Replies: 19
Views: 4087

Re: Disadvantages to Phase Contrast objectives?

ARRGGHHHH!!! Goomba - I just accidentally 'reported' your post - oops - I meant to use the quote button but accidentally used the exclamation-mark (report-post button...) - apologies :oops: :oops: I'll PP these images also to see just how close they can get to each other. The posted 'faithful' versi...
by mrsonchus
Thu Feb 27, 2020 1:31 pm
Forum: Beginner's corner
Topic: Disadvantages to Phase Contrast objectives?
Replies: 19
Views: 4087

Re: Disadvantages to Phase Contrast objectives?

Hi, I just had a quick look at a couple of images for a rough comparison. Comparing an Achromat Ph2 40x Olympus infinity objective to an Olympus PlanC N UIS2 'ordinary' BF objective, as image, WS_phase nosepiece (3).jpg I also keep a phase and BF nosepiece, WS_phase nosepiece (2).jpg The subject isn...
by mrsonchus
Sun Feb 23, 2020 3:05 pm
Forum: Beginner's corner
Topic: starting with olympus CX23
Replies: 3
Views: 1476

Re: starting with olympus CX23

Hi, I'd say you have a cracking start with the Olympus!
by mrsonchus
Thu Feb 20, 2020 8:47 pm
Forum: Camera systems and imaging
Topic: Video stitching and layering
Replies: 7
Views: 1460

Re: Video stitching and layering

Hi, I posted a video on Youtube of the process myself some time ago now -
by mrsonchus
Thu Feb 20, 2020 7:28 am
Forum: Camera systems and imaging
Topic: Video stitching and layering
Replies: 7
Views: 1460

Re: Video stitching and layering

Microsoft ICE is superb and fast for stitching.....
by mrsonchus
Sat Feb 15, 2020 10:17 pm
Forum: Introduce yourself
Topic: Hello from Tehran :)
Replies: 13
Views: 3701

Re: Hello from Tehran :)

That's why it's anatomy isn't the unifacial stem type - it's a petiole ('leaf stalk') - a little like a stem that hasn't fully 'wrapped into a cylinder' as it were - hence the lack of a ring of vascular bundles etc. In fact Bob's also looks like a petiole rather than a stem section - a lovely fresh ...
by mrsonchus
Sat Feb 15, 2020 3:57 pm
Forum: Microscopes and optics
Topic: isn't this a good deal for a Leica microscope ?
Replies: 31
Views: 9213

Re: isn't this a good deal for a Leica microscope ?

Hi Marco, a nice looking 'scope! Perhaps a variable neutral -density filter (as screwed onto the fron of a camera) on top of the light port will help. With this you'll be able to to keep the halogen at it's whitest full-ish setting and control light intensity with a turn of the rotating VND filter.....
by mrsonchus
Sun Feb 09, 2020 9:09 pm
Forum: Pictures and Videos
Topic: Nitzschia sigmoidea
Replies: 10
Views: 2556

Re: Nitzschia sigmoidea

I think you're right 75' - I definitely see different effects with the various (Weighted-Average, Depth-Map, Pyramid) options in Helicon Focus - especially I suspect with the very often 'soft' images of obscure detail within a mounted-section rather than optimally at the coverslip's underside.
by mrsonchus
Sun Feb 09, 2020 7:52 pm
Forum: Pictures and Videos
Topic: Nitzschia sigmoidea
Replies: 10
Views: 2556

Re: Nitzschia sigmoidea

Hi 75', I've just started using Bridge/Photoshop (and Lightroom-Classic for fast batch edits) and have found the stacking to be pretty good in PS also. Is there a way to know what type of stacking PS is performing, or even maybe to alter parameters do you know? Perhaps the absence of parameters poin...
by mrsonchus
Sun Feb 09, 2020 10:51 am
Forum: Pictures and Videos
Topic: Nitzschia sigmoidea
Replies: 10
Views: 2556

Re: Nitzschia sigmoidea

MichaelG. wrote:
Sun Feb 09, 2020 10:21 am
Fabulous image !

At this resolution I can’t see any evidence of the stitching :shock:
... is it really that good ?

MichaelG.
Ditto Michael!
It really is - when combined with 75's consummate skill with this work - fantastic inspiration and goal for others.
by mrsonchus
Sun Feb 02, 2020 2:00 am
Forum: My microscope
Topic: Olympus BX60F
Replies: 22
Views: 5392

Re: Olympus BX60F

Hi zero, I use sewing-machine oil on my 'tome's (Shandon) advance threads. I use mine quite often but it only seems to require oil about once every couple of years if that!
by mrsonchus
Wed Jan 22, 2020 11:15 pm
Forum: My microscope
Topic: Help on Leitz lens...can you help me with the shopping list ?
Replies: 8
Views: 2595

Re: Help on Leitz lens...can you help me with the shopping list ?

Hi, the 170 TL NPL and PL are for the SM-Lux, The EF are, as far as I'm aware, for the 160TL 'scopes.
by mrsonchus
Wed Jan 22, 2020 11:00 pm
Forum: My microscope
Topic: Help on Leitz lens...can you help me with the shopping list ?
Replies: 8
Views: 2595

Re: Help on Leitz lens...can you help me with the shopping list ?

Personally I'd choose the 25x in either set - a very handy magnification that I always include on my 'scopes (or a near-by 20x...).
The SM-Lux is a lovely 'scope in use in my experience.
by mrsonchus
Wed Jan 22, 2020 9:24 pm
Forum: Pictures and Videos
Topic: Licmophora flabellata
Replies: 11
Views: 1575

Re: Licmophora flabellata

Simply Stunning - almost looks like a Japanese fan. A
beautiful image, superbly executed - your standards always leave me astonished 75'.
by mrsonchus
Mon Jan 20, 2020 11:30 am
Forum: Specimens, samples and slides
Topic: 100 x oil for water life
Replies: 5
Views: 1454

Re: 100 x oil for water life

Hi Jan, a tricky manoeuvre for sure! I'd try to secure or even seal the coverslip before going to oil. Perhaps a couple of dabs of quick-setting 'stuff' at a few points around the coverslip/slide edges. I wonder if some small dabs of wax may be able to secure the coverslip and remain unaffected by t...
by mrsonchus
Sun Jan 12, 2020 3:44 am
Forum: Camera systems and imaging
Topic: BH2 BHS MTV
Replies: 37
Views: 3758

Re: BH2 BHS MTV

This looks like the Nikon F equivalent to the Canon?
by mrsonchus
Sat Jan 11, 2020 10:04 pm
Forum: Camera systems and imaging
Topic: BH2 BHS MTV
Replies: 37
Views: 3758

Re: BH2 BHS MTV

Hi, for my BX50's phototube (as mentioned, it 'comes with an Olympus connection') I simply fitted an Olympus--->Canon adapter-ring (cost under £10) and all's perfectly parfocal. This is an infinity system with the 'PE' projection eyepiece rather than the corrected NFK version. These are the pieces I...
by mrsonchus
Fri Jan 10, 2020 1:05 pm
Forum: Identification help
Topic: Mold Sample - Fungus - Spore Identification
Replies: 3
Views: 3277

Re: Mold Sample - Fungus - Spore Identification

Hi, looks very much like a pollen grain, possibly from the Lily family....
by mrsonchus
Fri Jan 03, 2020 11:15 am
Forum: Pictures and Videos
Topic: Salt mix
Replies: 18
Views: 2004

Re: Salt mix

A very nice image and effect/s indeed. As said - very dramatic.
You've clearly a great technique old chap, nicely-done!
by mrsonchus
Thu Jan 02, 2020 10:30 am
Forum: Microscopes and optics
Topic: Leica Sli LED Illuminator repairs
Replies: 10
Views: 861

Re: Leica Sli LED Illuminator repairs

Volpi made fiber goosenecks that clip on to at least some leica focus mounts, though this one is for the older style rack and pinion https://rover.ebay.com/rover/0/0/0?mpre=https%3A%2F%2Fwww.ebay.com%2Fulk%2Fitm%2F163986506082 I just clamped one onto the back of my Olympus stand with literal hardwa...