Dick Locke's Nikon D810A Camera Page - Astrophotography
Copyright 2016 by Dick Locke.  All Rights Reserved.  Contact and Image Use InformationMy astronomy equipment home page is here.

Canon held the advantage over Nikon for night sky and astrophotography for many years.  That has changed.  See Alan Dyer's article hereI've moved most of the daylight D810A pictures & discussion to this page.  I have created a Yahoo Group dedicated to the D810A, please join if you're a D810A owner!  Here's a review of the D810A the Luminous Landscape by Alan Dyer.  This page has info about flat-fielding problems with ImagesPlus and the Nikon D810A.

 


Nikon D810A & the Andromeda Galaxy M31


D810A and Zeiss 135mm Pictures Here


Huge Double Cluster D810A Picture Here


Milky Way, Sigma Art 50mm Lens


Southern Milky Way: Nikon D810A & Nikon 85mm Lens

This is 55 minutes total exposure (11*5min) with the Nikon Nikkor 85mm f1.8 lens at f3.5 and ISO 800.  I haven't had a chance to tackle the gradient or slight flat-fielding issues but I wanted to get something posted.  This is ever-so-slightly trimmed from the final stack, maybe 10 pixels, to clean up the edges.  Reduced (flats and darks) and converted to .tif in ImagesPlus, stacked in Registar, final processing in Photoshop CS6.  My current image processing workflow is here.

For additional details and identification of some of the objects shown: More from the Southern Milky Way is on my page dedicated to that area here.


North American Nebula Area:  D810A & Nikon 85mm f1.8 Lens

This is from the Fall 2015 trip to the Starry Nights B&B in Wimberley TX.  It shows the North American Nebula & Pelican Nebula areas in the middle, with the Butterfly Nebula area to the right.  Image Details: Nikon D810A camera, Nikon 85mm f1.8 lens at f4.5, about 3 hours total exposure (35 * 5 minutes).  My current image processing workflow is here.


Butterfly Nebula Area - Wide with D810A

Another image from the Fall 2015 trip to the Starry Nights B&B in Wimberley TX.  It shows the Butterfly Nebula area to the mid-right, along with a lot of interesting detail including dark nebula and countless stars. The bright blue star extreme upper right is Deneb, and above that you can just make out part of the North American Nebula complex. The entire area is awash with glowing red clouds of ionized gas. Image Details: Nikon D810A camera, Nikon 85mm f1.8 lens at f4.5, 85 minutes "piggy back" on the telescope (17*5) total exposure.  I processed and stacked this image in the .dng format.  My current image processing workflow is here.

The above is copied from my September 2015 West Texas Trip page, here...


Nikon D810A Moon Pictures

 

Camera control and processing options for the Nikon D810A as of 8/25/15:

Astronomy and Camera Equipment

Processing Astrophotos

You want to buy a telescope?

Old Scope Setup

Dick Locke's DL-DIGITAL web site

Astronomy Pictures: Dick Locke's Astrophoto Gateway page....

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Various statistics on the D810A:

 

35.9 x 24.0 mm CMOS sensor

FX format (36x24): 7360 x 4912

Approx. 980 g/2 lb 2.6 oz with battery and SD memory card but without body cap; approx. 880 g/1 lb 15.1 oz (camera body only)

Info below from my equipment page

Scope f len mm ST-8300x ST-8300y ST-8300 arc sec pix ST-8300 bin 2x2 ST-8300 bin 3x3 QHY8 x QHY8 y QHY8 aspp 20Dax 20day 20Da aspp D810A x arcmin D810A y arcmin D810A aspp
Toa 130 1.6x Extender 12.3 1600 29 38.7 0.70 1.40 2.10 34 51 1.01 32.2 48.3 0.82 77.1 5.16 0.64
TOA 130 Flat 7.7 1000 46 62 1.11 2.23 3.34 55 80 1.61 52 77 1.32 123.4 82.5 1.03
TOA 130 Reducer New 5.369 698 67 88 1.60 3.19 4.79 117 77 2.30 68 102 1.89 176.3 117.9 1.47
TOA 130 Reducer Old 5.8 754 62 82 1.48 2.95 4.43 72 106 2.13 68 102 1.75 163.6 109.4 1.36
Baby Q 5.3 450 103 137 2.48 4.95 7.43 119 181 3.58 121 182 2.93 274.3 183.4 2.28
Baby Q Reducer 3.86 328 142 189 3.40 6.79 10.19 164 249 4.92 157 236 4.02 376.3 25.6 3.13

 

Cameras pix w pix h img. Cir pixel size width mm height mm area sq mm Delta QHY8
QHY8 3032 2030 28.4 7.8 23.7 15.6 370 100%
20Da 3504 2336 27.0 6.4 22.5 15.0 338 91%
ST-8300 3326 2504 22.5 5.4 18.0 13.5 243 66%
D810A 7360 4912 43.2 4.97 35.9 24.0 861.6 862

Above Updated 8/24/14 with the TOA 130 new reducer info, and July 2015 for the D810A Camera.

Here's a review of the camera from the Luminous Landscape by Alan Dyer.