Search found 3682 matches

by mrsonchus
Sun Feb 09, 2020 7:52 pm
Forum: Pictures and Videos
Topic: Nitzschia sigmoidea
Replies: 10
Views: 3334

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: 3334

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: 7700

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: 3383

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: 3383

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: 2045

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: 2012

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: 5224

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: 5224

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: 3791

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: 2703

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: 1114

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...
by mrsonchus
Wed Jan 01, 2020 5:57 pm
Forum: Pictures and Videos
Topic: Botanic section from paraffin block with unreadable label
Replies: 14
Views: 1681

Re: Botanic section from paraffin block with unreadable label

I'd agree with you 100% there Bob - additions/modifications to Paraplast would surely be at best needless.
by mrsonchus
Tue Dec 31, 2019 3:17 pm
Forum: Pictures and Videos
Topic: Botanic section from paraffin block with unreadable label
Replies: 14
Views: 1681

Re: Botanic section from paraffin block with unreadable label

Hi Bob, it has both options, a timer and a 'stay-on' option. I leave this on overnight set at 60 deg, no problems at all.
by mrsonchus
Mon Dec 30, 2019 8:08 pm
Forum: Pictures and Videos
Topic: Botanic section from paraffin block with unreadable label
Replies: 14
Views: 1681

Re: Botanic section from paraffin block with unreadable label

Hi Bob, I still use the little oven, controlled by a separate PID thermo-switch, with the oven's own thermostat as the backup. I also now use a 'dry-block' heater, which gives very accurate temperature control indeed - in fact it's all about the max-min curve response of the heater - the shallower t...
by mrsonchus
Mon Dec 30, 2019 6:24 pm
Forum: Pictures and Videos
Topic: Botanic section from paraffin block with unreadable label
Replies: 14
Views: 1681

Re: Botanic section from paraffin block with unreadable label

Hi Bob - you've been nibbled by the 'sectioning-bug'!! :D :D As suggested above, I would go a step further though. Put the block into some molten wax of the kind you're using and wait for it to melt completely, at which time the moss will become visible in the liquid wax. Then, simply pass the shoot...
by mrsonchus
Mon Dec 30, 2019 5:59 pm
Forum: Pictures and Videos
Topic: Daisy flower bud cross section - Bob's first paraffin embedding
Replies: 9
Views: 1089

Re: Daisy flower bud cross section - Bob's first paraffin embedding

Excellent! Looks like you're into the outer petals at this level, with the papillose upper surface of said petals being clearly papillose.... Further down you'll come to dozens of tiny florets comprising the Daisy's 'flower', which show an amazing pattern when caught in TS - think Fibonacci perhaps ...
by mrsonchus
Mon Dec 30, 2019 5:44 pm
Forum: Pictures and Videos
Topic: Botanic section from paraffin block with unreadable label
Replies: 14
Views: 1681

Re: Botanic section from paraffin block with unreadable label

Aha! Definitely a moss-leaf I'd say. Not sure of an ID though. It's similar to a couple of hand-sections I've taken in the past link to images The block looks to contain a complete moss 'branch' or shoot (perpendicular and 'top-first' to the knife's-cutting plane), that has a stem in the centre (yet...
by mrsonchus
Mon Dec 30, 2019 5:32 pm
Forum: Pictures and Videos
Topic: Botanic section from paraffin block with unreadable label
Replies: 14
Views: 1681

Re: Botanic section from paraffin block with unreadable label

Aha! Definitely a moss-leaf I'd say. Not sure of an ID though. It's similar to a couple of hand-sections I've taken in the past link to images
by mrsonchus
Sun Dec 29, 2019 10:39 pm
Forum: Pictures and Videos
Topic: Daisy flower bud cross section - Bob's first paraffin embedding
Replies: 9
Views: 1089

Re: Daisy flower bud cross section - Bob's first paraffin embedding

Congratulations Bob - looks like a really good start to me!

I look forward to following your adventures.
by mrsonchus
Fri Dec 27, 2019 9:03 pm
Forum: Microscopes and optics
Topic: Objective FN versus Ocular FN - Compound Microscope
Replies: 11
Views: 1273

Re: Objective FN versus Ocular FN - Compound Microscope

As far as I know the phototube and PE 2.5x photo-eyepiece combination is the same for the SW (26.5mm FN) head as for the 22mm FN head. I wonder what the FN of the PE 2.5x is? I'll have a peer down it with the 60x objective in place and see where the field-iris sits when set at 22mm and 26.5mm.
by mrsonchus
Fri Dec 27, 2019 3:19 pm
Forum: Microscopes and optics
Topic: Objective FN versus Ocular FN - Compound Microscope
Replies: 11
Views: 1273

Re: Objective FN versus Ocular FN - Compound Microscope

Here's a link to my G-Photos shared folder with a set of images both edited and as-shot of the 22mm and 26.5mm settings of the field-iris. The 26.5mm are as expected a little brighter than the 22mm images, but I can't see any difference worth mentioning in the two versions. I've included sets of 'en...
by mrsonchus
Fri Dec 27, 2019 11:33 am
Forum: Microscopes and optics
Topic: Objective FN versus Ocular FN - Compound Microscope
Replies: 11
Views: 1273

Re: Objective FN versus Ocular FN - Compound Microscope

Hi Bob, that makes perfect sense to me too; also perhaps one may say that the first to receive light is the objective, designed to be illuminated to 26.5mm. That suggests another related question, namely, 'does illuminating an objective below the diameter of it's FN compromise or alter, either-way, ...
by mrsonchus
Fri Dec 27, 2019 8:55 am
Forum: Microscopes and optics
Topic: Objective FN versus Ocular FN - Compound Microscope
Replies: 11
Views: 1273

Re: Objective FN versus Ocular FN - Compund Microscope

Hmm, a few points to ponder, thanks all. So, the head and oculars are the 'ordinary' widefield Olympus 22mm FN, the objectives with matching 22mm FN are the Plan N UIS2 line. One objective (a high-dry 60x) is of the UPlanApo variety with the 'super widefield' 26.5mm FN.... Is it 'better' (theoretica...
by mrsonchus
Thu Dec 26, 2019 3:14 pm
Forum: Microscopes and optics
Topic: Objective FN versus Ocular FN - Compound Microscope
Replies: 11
Views: 1273

Objective FN versus Ocular FN - Compound Microscope

Hi all, just a quick question I've been pondering during the few idle moments I've had over the last couple of days....

With an objective of FN 26.5 and FN 22 oculars in a head also of FN 22(mm), should the field-iris be set to the objective's FN or that of the ocular/head combination.
by mrsonchus
Fri Dec 20, 2019 5:44 pm
Forum: For forum members who want to buy and sell equipment
Topic: Olympus BX parts for sale
Replies: 1
Views: 1413

Olympus BX parts for sale

Hi all. I've a spare Olympus BX40 frame that I'm selling in parts. I'm placing the parts onto e-bay hopefully they'll all be listed tonight.... Including: 6V 30W halogen lamphouse including bulb, https://lh3.googleusercontent.com/8P82dOeQMPWjGw66MAWQTAANAkzkPOplFuh94v5bmykP5F_do0FGLcmBltB2v0gpFVDUt_...
by mrsonchus
Wed Dec 18, 2019 11:16 am
Forum: My microscope
Topic: My Leitz Orthoplan
Replies: 85
Views: 31062

Re: My Leitz Orthoplan

Hi jan',
I also had accasion to do the same with my Orthoplan.
I cleaned the field-iris blades (having removed the mirror+mount) after which they were as smooth as silk. The mirror and lighting were exactly as before when I put it back together.
by mrsonchus
Tue Dec 17, 2019 12:53 pm
Forum: Identification help
Topic: Algae colony?
Replies: 3
Views: 2038

Re: Algae colony?

Most interesting post! I really like the video - looks great quality to me, and has an 'unrushed' style to my eyes, which gives time for scrutiny whilst letting it run-on. Interesting to see your proposed ID and the stages present/spotted. I'm a 'plant botherer' but always appreciate any interesting...
by mrsonchus
Sat Dec 14, 2019 12:54 pm
Forum: Pictures and Videos
Topic: Diatoms from the Seychelles!
Replies: 13
Views: 1547

Re: Diatoms from the Seychelles!

Must agree, not my area as they say, but really interesting images and the link is to a very readable (for such as myself with no Diatom knowledge at-all) and interesting article! As mentioned, the variety of forms must surely be a response to optimal requirements in one way or another - clearly a f...
by mrsonchus
Tue Dec 10, 2019 8:00 pm
Forum: Pictures and Videos
Topic: Muscles in leg of centipede
Replies: 5
Views: 822

Re: Muscles in leg of centipede

Another superb one!
That's a great image - the 'strands' are clearly visible!