Macro-photography

I now found my Macro'ed photo, a notched screwdriver for scraping copper wires clean, using the macro facility on my Fuji X-20.

Hi Duncan,

The bowden type ones have a tapered thread, and fit mechanical film cameras. Digital cameras require either a wireless or plug in type. The plug in type fit into a mini jack plug on the camera, the wireless type usually work via an infra red receiver on the camera. Bad news is they must be compatible to your model of camera. The shutter button is in effect just a two position electrical switch, half press activates focusing motor, full press activates the shutter.

If your subject is fairly static, just use the self-timer, set it on it's shortest duration if it is possible to do so.

PS To all those who don't know, never connect any self powered device, or flash, to your camera, unless it is deemed compatible, as any extra voltage going back to your camera, over it's safe limit, will fry it's brain......

But for the scale, this might even be the Grand Canyon.

This was the thread **LINK**

Oh, and the colours are wrong for the Grand Canyon..

That's a brilliant grasshopper photograph, Brandersnatch. Looks like flash from the side, with fill in from above?

By the way, with this one (below) ...

You'll see it when you believe it. It's a brain teaser.

Regards,

Sam

passion flower

Actually it was just available light, Sam. It was on the handrail of the stairs leading up to the condo we were renting in Florida (some years ago now when I wasn't persona non grata for medical insurance and used to drive down from Ontario in the spring for a few weeks). It was just "there" when I came back from the beach and I took the opportunity.

The lighting is very bright - even harsh - in Florida so I can see where you might think it was flash.

Bandersnatch,

That's impressive for natural light.

Great shot.

ATB,

Daniel

A pair of Hollyhock Weevils having a cuddle ....

And a spider ...

Edited By Daniel on 19/05/2020 06:38:24

Following MIchael Gilligans comments about Achromatic Doublet lens giving good results I did a bit of googling and came across the NISI Closeup lens which is a Double Apochromatic Lens and with Multi-Nano Coating which had some excellent reviews. This looked like a good bet as did not want spend a fortune on a specialist macro lens.

Turned up this morning so had a quick go before got on with some gardening projects.

Hand held on Nikon D7000 with 70-300 zoom and the NISI lens.

Quite pleased with results.

Colin

re Sam Stones,

I think it's a submersible thermostat, possibly from a car. It's showing rust on both sides which implies permanent submersion. The two circular objects are springs, so I think it has a snap action to allow an increased water flow, eg the temperature in the engine block has reached normal so the thermostat moves to bring the radiator into play.

Well, that's my thought. Probably totally and completely wrong!

Peter G. Shaw

Thanks for the clue Sam, got it now

Neil

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... and can now feast your eyes on this:

... from a Zeiss brochure, recently re-discovered by someone on the microscopy forum.

MichaelG.

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Document is here: http://www.robarts.ca/confocal/Objectives.pdf

Edited By Michael Gilligan on 20/05/2020 09:58:56

Captured this on the phone whilst out riding the bike yesterday:-

Rosa canina "Dog Rose" I believe.

John

Lovely image that, John

MichaelG.

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Phew ... that’s a relief, Colin

[couldn’t really ask for better performance than that with a supplementary on a zoom]

MichaelG.

Very nice capture of flowers Colin and John.

Colin, if you have a 50mm lens you can try a reverse ring attachment to further magnify your subjects.

I didn't realise that some of the extreme macro shots of some insects are taken with a dead specimen. That explains how they can get extremely close to an ant without it moving about.

Its amazing to see how a phone camera compares to a dedicated macro lens. It might not be a 1:1 magnification but amazing how you can get very close to your subject and capture a remarkable amount of details. I'm very curious as to how much magnification a phone camera can handle. Maybe its 1:2 and above?

Edited By RAPHAEL VAL GOLEZ 1 on 20/05/2020 11:32:50

Edited By RAPHAEL VAL GOLEZ 1 on 20/05/2020 11:36:00

Raphael, modern phone cameras are very good, in fact often a major selling point. I am no photographer, strictly point and shoot but for anyone who can understand it (I can't) the exif data for the rose says:

size:4096 x 3072px, camera: Motorola g7, aperture: F1.8, shutter: 1/180 seconds, focal length: 4mm

Taken I would guess about 150 to 200mm away from the subject. I have cropped it slightly to remove some of the leafage! and centre the image. Biggest problem is that it is difficult to see the screen in bright sunshine and it's a bit hit and miss if the object is moving as there is some shutter delay and of course the phone throws a shadow if the light is behind you.

John

Raphael The usual technique with small beasts is to freeze them or at least cool them down

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It’s a potentially difficult concept, Raphael

If you think in the same terms as we did for film cameras [substituting the physical of the sensor for the film frame size] then almost every image taken on a ‘phone is greatly “minified”.

The more appropriate paradigm is probably to consider the screen size, rather than the sensor ... but even that bears no direct comparison with film, or with large camera sensors.

MichaelG.

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More about that emboldened word, later.