Macro-photography

[Michael GilliganParticipant @michaelgilligan61133]

Posted by Brian O'Connor on 08/06/2020 18:02:17:

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Picked this little chap off my dog

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Must admit I had never seen the like of that

… But I‘ve just found this: **LINK**

http://www.irishdogs.ie/news/2017/05/24/dog-owners-warned-of-risks-from-disease-carrying-ticks.html

MichaelG.

[Sam StonesParticipant @samstones42903]

A fortunate dog, Brian.

Could some of the tick's legs have broken off, or is it just their angle?

Although like MichaelG I hadn't known of those ticks in the UK, of about 75 species of tick here in Australia, there’s one known as the paralysis tick … Ixodes holocyclus.

Often hidden under the animal's coat, a single tick is capable of killing a large dog.

Sam

[Brian O’ConnorParticipant @brianoconnor49474]

This one had obviously had a good feed of my dog's blood, they are tiny when empty. You have to be very careful how you remove a tick because you can leave the mouth parts behind, which can fester and make the dog very ill. I used a special tool you can buy which was probably responsible for some of the legs being pruned.

[Michael GilliganParticipant @michaelgilligan61133]

Posted by Nicholas Farr on 07/06/2020 19:01:36:

Hi, while listening to Tina Turner's greatest hits this afternoon, I took a few photos with my Canon 40D and my new 35mm Macro lens. Two photos of my late elder brothers dedicated Austin leather key ring fob and two photos of his gearstick knob that he never got to fit. […]

A couple of simple things, but I thought the might be interesting macro photos

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Thanks for sharing those, Nick

The choice of appropriate lighting is half the battle

MichaelG.

[Michael GilliganParticipant @michaelgilligan61133]

This is way off-topic, but I’m presuming that most photographers have wide interests **LINK**

https://www.bbc.co.uk/news/in-pictures-52934802

Pictures from the Sony World Photography Awards

MichaelG.

[Raphael GolezParticipant @raphaelgolez]

Enjoyed the recent photos posted here.

Michael, Thanks for the link. Enjoyed it.

BW,

Raphael

[Roderick JenkinsParticipant @roderickjenkins93242]

I see the winner of the Still Life Category was won by Alessandro Gandolfi – there's a name for camera enthusiasts to conjure with:

**LINK**

Stay well,

Rod

[Raymond GriffinParticipant @raymondgriffin40985]

A topical pair this time. I think that this is a diagrammatic representation of coronavirus, used in the 1980’s. It is now a bit grainy but used to look good projected. Right is top and left lower.

Sam, is Photoshop easy to use for pairing these images? Also, is it possible to colour one image red and the other blue/green; so that they can be viewed with coloured glasses on a PC? My projector polarises the images at 90°, and they are viewed on screen using polaroid spectacles. I cannot see how polarising could work on a monitor. Thank you for the paired images.

Raymond

[Michael GilliganParticipant @michaelgilligan61133]

Posted by Roderick Jenkins on 09/06/2020 17:48:57:

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I see the winner of the Still Life Category was won by Alessandro Gandolfi […]

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Here is himself …

**LINK**

MichaelG

[Sam StonesParticipant @samstones42903]

My straight answer Raymond is ‘Yes!’ I just happen to have a rather old copy (CS3 V10.0).

It took three minutes to copy your two images; place them both ways to check for (my x-eyed) viewing before <save image as …>. Had I included parallel viewing, it would have added another minute or two.

Additionally, my skills with Photoshop are very limited. However, I’m sure there are others here who will have the ability to transform the L/R images into Red/Green or Red/Blue in the manner required for 3D viewing using two-colour ‘spectacles’.

In my (Photoshop) attempts, I found it easy to colour the images, but (at 50% transparency, if that was the way) failed miserably to overlay one with the other, producing instead a medium shade of purple.

Sam

PS – Now I'm already there, I'll add the 'Parallel' viewing pair shortly.

[Sam StonesParticipant @samstones42903]

Here's the pair for parallel viewing.

Another good subject Raymond

[Enough!Participant @enough]

Posted by Raymond Griffin on 09/06/2020 18:50:10:

Sam, is Photoshop easy to use for pairing these images? Also, is it possible to colour one image red and the other blue/green; so that they can be viewed with coloured glasses on a PC?

 

Raymond, you could also go here and take a look at StereoPhoto Maker … as well as the other offerings. All freeware.

At the bottom of the SPM page are numerous links to tutorials et al.

Edited By Bandersnatch on 10/06/2020 01:32:46

[Nicholas FarrParticipant @nicholasfarr14254]

Hi Raymond & Sam, the virus one works well.

Regards Nick.

[Michael GilliganParticipant @michaelgilligan61133]

Posted by Nicholas Farr on 10/06/2020 08:33:46:

Hi Raymond & Sam, the virus one works well.

Regards Nick.

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Indeed it does

The parallel pair is excellent, for me

and [as a parallel viewer] I see the cross-eyed pair as the view into a bowl.

… Just as one should expect.

MichaelG.

[Raphael GolezParticipant @raphaelgolez]

Some updates: Taken at 4 times magnification using a microscope objective attached to an extension tube and to my camera. Pictures are very difficult as the insects are constantly moving. I tried my very best to capture the shots.

[Sam StonesParticipant @samstones42903]

Splendid photographs Raphael.

If only they would cooperate for a few moments

The opportunity for focus stacking even less, let alone stereo pairs.

Sam

[Nicholas FarrParticipant @nicholasfarr14254]

Hi Raphael, very good photos, although they don't look as if they are moving much, unlike this little chap that I spotted the other evening as I was shutting up my garage. The light was fading and I used my Canon 35mm macro lens using the lens light on half level, but this chap was slowly climbing the piece of aluminium but pausing now and then and as you may have guessed, started to move every time I had it framed. The first photo has only been resized and the second one has been cropped by slightly over 50% and resized, but was taken with flash as the daylight was too dull and was too long exposure with the lens light.

Like Sam says, pity they don't cooperate for a moment or two.

Regards Nick.

[Enough!Participant @enough]

There used to be a technique in these cases to give them a quick blip of cold spray to slow them up for a few seconds/minutes. After which they seemed to proceed as normal (probably non-pc these days notwithstanding).

[ Cold spray was stuff in a spray can that repair technicians used to cool transistors et al as an aid to trouble shooting. Still available? ]

Re: dragonflies, Years ago, in film days, I found an article – might have been on the internet or magazine, not sure – about someone who stacked a bunch of relatively cheap telephoto converter tubes, paired them with his camera and mounted the whole lot to a heavy-duty tripod. He would sit around marshland and take pics of dragonflies in full flight.

A lot of armchair photographers pooh-poohed his optics but he sure got the best (and most colourful) dragonfly pics that I've ever seen.

Edited By Bandersnatch on 11/06/2020 18:26:35

[Neil WyattModerator @neilwyatt]

Posted by Michael Gilligan on 10/06/2020 08:53:10:

Posted by Nicholas Farr on 10/06/2020 08:33:46:

Hi Raymond & Sam, the virus one works well.

Regards Nick.

.

Indeed it does

The parallel pair is excellent, for me

and [as a parallel viewer] I see the cross-eyed pair as the view into a bowl.

… Just as one should expect.

MichaelG.

I found the cross-eyed one easy and the parallel one stubbornly refused to work!

Possibly it was displaying at too-wide a spacing on my screen.

Neil

[Sam StonesParticipant @samstones42903]

My thoughts too, Bandersnatch!

I held back on the basis that it was both cruel and cheating.

My one and only success from using a can of freezer spray, was locating a faulty IC in a friend’s radio. Or was it a wireless?

Neil, jump back to ‘My eureka moment’ at the top of page 14.

**LINK**

Sam

[Michael GilliganParticipant @michaelgilligan61133]

Posted by Sam Stones on 11/06/2020 20:45:20:

[…]

Neil, jump back to ‘My eureka moment’ at the top of page 14.

**LINK**

Sam

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… or even back to 2015 : **LINK**

https://www.model-engineer.co.uk/forums/postings.asp?th=107010

… a thread to which you [Neil] contributed.

MichaelG.

[Nicholas FarrParticipant @nicholasfarr14254]

Hi, just to reassure everyone, no Damselfly was hurt or chilled by any freezer spay in my photo, although the evening was rather cool when I took the photos. It was nowhere to be seen the next day, so I guess it flew away or became supper for a bird.

Regards Nick.

[Nicholas FarrParticipant @nicholasfarr14254]

Hi Neil, I can only see them on my phone. I did try on my 7" tablet, but they won't work for me on that.

Regards Nick.

[Raphael GolezParticipant @raphaelgolez]

Outdoor handheld single shots. Critters are very slow just after the rain. Taken with a 105mm macro plus 52.2mm extension tube.

[Raphael GolezParticipant @raphaelgolez]

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