Telescope Reviews: Jul12 DSLR Challenge winner

We are very pleased and proud to present the July 2012 entries in the DSLR Challenge. The poll will close on August 8 at Midnight. The winner will be announced

at our earliest opportunity after the poll has closed.

Here are July's entries!

Yoddha:

Takahashi EM-200, SkyWatcher MN190, modified 550D; Guide Meade 90mm ahromat, Meade DSI 1 pro
Subs 4x7min and 1x5min at ISO 1600. No calibration - only dithering. Total light time - 33min.
Imaged with APT and PHD, processed with DSS and PS CS3
Jul 14th 2012, near Sofia, Bulgaria

Bigger version: http://www.astrobin.com/full/14875/

Orion58:

Vixen VC200L (using 0.71 reducer at f/6.4), CGEM DX, Canon T1i modified, Orion SSAG/ST-80
Subs: 51 x 200s and 26 x 240s @ ISO 1600. Total exposure time 4 hr 34 min. Dark, flat and bias frames also used.
Captured with BackyardEOS (dithered every other exposure), stacked in DSS and processed in PS CS5.
Image taken July 10 & 11, 2012 in southern Wisconsin, USA.

Larger version: http://www.astrophotogallery.org/member-galleries/p9906-the-trifid-nebula-in-sagittarius.html

Cha Cal:

C8 on a CG-5GT mount with Celestron's 80mm guidescope used for guiding. Nikon D3100. Total exposure time of 16min 22 seconds. Processing with DSS and Photoscape.

July 22, 2012 near Brisbane, Australia.

ldesign1:

Here's my full resolution image of M20 Trifid Nebula taken from my backyard observatory in a Red/White zone on July 6,

2012

10” Meade LX200GPS @ f/6.3
CDS-600D (Cooled EOS T3i-600D)
28x30s + 17x120s + 12x300s @ ISO 800
(84 Darks, 25 Flats, 25 Dark Flats, 50 Bias)
BackyardEOS, DeepSkyStacker, Photoshop CS5
32º F - Sensor Temperature

carlo rocchi:

Here's my attempt:
21x360sec. subframes, modded Canon 400D on Televue 102 f/7.
Mount: EM-200 Takahashi Temma 2M
Guiding: Magzero 5M on SW 70/500 - Phd guiding
Processing: Iris - Photoshop Cs4
Location: Colle di Sampeyre (Italy)

Full size: http://www.astrobin.com/full/15846/?mod=none

oldstargazer:

Here is my version from stock T3i using (Seben CLR) Light Pollution filter.
This is 4 frames of 4 minutes at iso1600. Scope used was Celestron Omni 150 on CG5 mount. Stacked in DSS and resized/cropped in Olympus studio pro.

zytrahus:

Here's my entry:

* High Resolution image *
* Taken on July 21st 2012
* ~ 3 hours (120s and 300s subs)
* Processed and Calibrated (Dark/Flat/Bias) with PixInsight

bigdeal:

here's mine:

taken July 25 and 26
modified canon 450d with homemade cooler
800iso 33@300s, + darks,flats,dark flats,bias
cls filter
c9.25 w/6.3 reducer on losmandy g11

Wembley2000:

Here is my Submission:

Meade 10" LX200 with Meade.63 Focal Reducer
Guided with Orion Mini Guider and SSAG - PHD
Canon 400D Unmodded - BYEOS
Meade Super Wedge
22x300 Sec subs, Stacked in DSS, final processing in PS CS5

Wem

austin.grant:

Here's my crack at it.

25 x 90-second Lights (38-minutes)
9 each of Darks, Flats and Dark Flats
Captured with a Brent Oliver modified T2i and BackyardEOS, using an AT8IN, Baader MPCC and a HyperTuned Atlas.
Subs collected on July 25th, stacked in DSS and processed in CS5.

Link to a larger file here

and a crop here

PLEASE click the links, the CN resize killed this image! Thanks for looking.

srosenfraz:

Here's my version of the Trifid:

High Resolution Version and more image details available at

http://www.astronomersdoitinthedark.com/index.php?c=17&p=450

This image is from a stack of 328 x 3 minute subs (total about 16 1/2 hours) with an orange tube Celestron C-8, Celestron focal reducer at f/5.8 (1160mm) and a

Gary Honis modified Canon 450D. Guiding is with an ONAG on-axis guider, Lodestar autoguider, and Phd Guiding.

Thanks for looking!

Congratulations and good luck to each entrant!

*

Which Image is our Winner?
Users may choose only one (39 total votes)

Yoddha:

6 15%

Orion58:

3 07%

Cha Cal:

0 0%

ldesign1:

2 05%

carlo rocchi:

1 02%

oldstargazer:

0 0%

zytrahus:

12 30%

bigdeal:

0 0%

Wembley2000:

1 02%

austin.grant:

6 15%

srosenfraz:

8 20%

Edited by Charlie Hein (08/11/12 08:40 AM)