Penny macro contest - revisited
DA35mm f2.4 reversed wide open, Soligor 200mm f11, Jessop 2X Ricoh TC, 68mm extension tubes. Lighting, Sunwayman C10A murky green tint middle brightness stuck on a cardboard tape roll.
Try stopping it down less. Faster shutter and less chance of diffraction softness.
ah ha, getting the magnification now
Try stopping it down less. Faster shutter and less chance of diffraction softness.
Ta.
And taking beta-blockers, doing some exercise to allow shooting between heart beats, having a 3D macro rail, setting up the axial lighting Nass mentioned, and not being so thick as to wonder why there's no timer MUP with liveview!!!!!
Here's my camping setup but with all my extension tubes. No aperture control on 300 so wide open.
No macro lenses, but some expensive glass in there, so not many points for ingenuity. translucent white perspex in sunny window for bright defused light.
3 second exposure.
Looks like the whole shebang could have been straightened up better
I wonder if I can borrow next door's telescope?
Haven't tried the WG-10 underwater yet
Here is another go, Pentax K3, Pentax M bellows, Vivitar extension tubes SMC Pentax-M 28mm F2.8 reversed.
Not as sharp as the 50mm F1.7 but greater mag.
Pentax K1ii, K3, K-m & MX-1.
Pentax LX, MX, ME Super & MV.
"Old Skool" with the new!
Pentax K1ii, K3, K-m & MX-1.
Pentax LX, MX, ME Super & MV.
"Old Skool" with the new!
2.5 s exposure, K-5, uncropped.
Here's the setup:
From the bottom up:
- A C. Baker 10 x achromat microscope objective (= 16 mm focal length), working distance ~ 2-3 mm. No aperture, so wide open. Came as part of a £50 microscope, so say £5?
- A Pentax Adapter K for microscope lens (can't remember where that came from).
- A Female K-mount, bodged from a donor teleconverter and used to replace the original M42 mount on:
- Pentax Auto Bellows, M42 mount. £18 (had been horribly abused in a past life).
- T2 adapter to PK, attached to what's left of the original bellows M42 mount.
Light source is a stereo microscope lamp (free, recovered from skip), with light softened by bouncing off 1 sheet toilet paper.
Shutter triggered with a Pentax IR remote in mirror-up mode.
Camera operator perched carefully on a chair to minimise changes in foot pressure giving rise to tripod movement via carpet.
My next attempt will be as above, but with a 40 x microscope objective (4 mm focal length) - working distance will be < 1 mm so lighting is going to be an issue ...
David
Looking forward to seeing the next one
Bit like shooting the moon: everyone's done it, but that's what makes it challenging and good for comparisons.
I've fixed my links as I moved my website a few years ago.
a) earlier this week I ordered some coupling rings and other bits and pieces to see how much usable magnification could be squeezed out of the lens collection; and
b) since placing the order I've been wondering what to use for the first subject...
... it would be perverse to refuse this invitation.
Steve
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1753 posts
16 years
Plymouth,
UK
Little over-exposed Chris, but nice and sharp
Plymouth Photographer