Latest Afocal Photography at Flickr.com

20180318_2048

dw_ross posted a photo:

20180318_2048

Afocal photography, sometimes called digiscoping, simply means that a camera with a taking lens is used where an observer's eye would normally be, looking into the microscope (or telescope) through the eyepiece or ocular. Execution, however, is not especially simple if the photographer wants to collect multiple images so that focus-stacking software can be used to increase the depth of field. The only thing that should move between exposures is the subject, and this movement is controlled by slight adjustments of the fine focus knob on the microscope.

The technique shown here involves a tripod with a geared central column for smooth vertical positioning, a 3-way Manfrotto 3028 tripod head to hold the camera at the same angle as the microscope viewing tube, a Velbon Macro Slider for fine control of on-axis and lateral movement of the camera, and a taking lens with a focal length chosen to minimize or eliminate vignetting of the field of view. A remote shutter release is essential, and the electronic shutter of the Nikon V1 is a plus.

Sun, 18 Mar 2018 17:04:29 -0700
nikond700 micronikkorpc 55mmf35ai afocal microscope sb600 ceilingbounce
Crater Copernicus

atgc_01 posted a photo:

Crater Copernicus

en.wikipedia.org/wiki/Copernicus_(lunar_crater)

Afocal photography with Lumix LX3 through a telescope and Plossl 32 mm & 3X Barlow.

Sat, 24 Feb 2018 23:59:52 -0800
lumix lx3 afocal telescope moon plossl32 barlow

The Moon February 24 2018

atgc_01 posted a photo:

The Moon February 24 2018

HDR Composition of 5 images stitched with Microsoft ICE. Afocal photography with Lumix LX3 through a telescope and Plossl 32 mm & 2X Barlow.

Sat, 24 Feb 2018 23:59:52 -0800
lumix lx3 afocal telescope moon plossl32 barlow
cool sunspot sept5/17

c4mtr0n1 posted a photo:

cool sunspot sept5/17

Active Region 2673, responsible for the sept 6/2017 X9.3 flare

Tue, 05 Sep 2017 13:37:03 -0700
red yellow black sunspots complex sun solar astro photography daytime telescope sony sonyalpha afocal

Eclipse

jtaylor14368 posted a photo:

Eclipse

This is right around the peak for Roanoke, VA at about 90 percent.

Mon, 21 Aug 2017 13:15:18 -0700
eclipse afocal roanoke
eclipse

jtaylor14368 posted a photo:

eclipse

Mon, 21 Aug 2017 13:14:13 -0700
eclipse solar rx100 afocal

Waxing Gibbous

jtaylor14368 posted a photo:

Waxing Gibbous

Still having trouble maintaining hand held focus when doing afocal projection but here is another attempt.

Sun, 02 Jul 2017 21:03:59 -0700
rx100 lunar afocal gibbous moon
Waxing crescent

jtaylor14368 posted a photo:

Waxing crescent

Back out with the telescope tonight attempting to capture our beautiful moon.

Tue, 27 Jun 2017 19:17:34 -0700
moon rx100 afocal lunar

Supermoon 2018 (uncropped)

Petr Hykš posted a photo:

Supermoon 2018 (uncropped)

I took this image holding my DSLR camera above my telescope eyepiece (afocal).

Just some casual brightness adjustments, chromical abberation removal and sharpening (Digital Photo Professional & GIMP). This is an UNCROPPED version - original size. You can imagine how hard it was to fit the whole supermoon on camera display.

I would like to compare this image later with minimoon 2018, when lunar disc appears smallest (Moon at perigee) - an opposite to supermoon (Moon at perigee). It will be on July 27th, when an amazing total lunar eclipse will be (hopefully) visible, too.

Telescope details
refractor Celestron Powerseeker 50AZ
focal lenght: 600 mm
lens: 50 mm
eyepiece 20 mm

Wed, 03 Jan 2018 04:54:40 -0800
supermoon 2018 moon luna space astronomy telescope dslr afocal uncropped celestron powerseeker
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Sun Metron posted a photo:

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from the LEM

Mon, 01 Jan 2018 19:43:35 -0800
fullmoon meade meade4500 afocal freehand wolfmoon

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