Jun14 DSLR Challenge Poll!
Posted 12 July 2014 - 10:51 AM
Who has brought us the best M13? Vote for your favorite from the following entries:
Here is my image taken in the morning hours of June 8, 2014.
Imaging telescopes or lenses: Celestron XLT 150
Imaging cameras: Canon 350d modded
Mounts: Celestron Advanced GT CG5
Software: DSS, Photoshop
Accessories: Orion StarShoot AutoGuider, Intervalometer
Location: Saranac, NY
All other details about the image can be found on the link to the image on astrobin.
I'm heading out of town for the rest of the month, so here's an image of M13 that I took on June 9th. This is 16, 3 minute subs at ISO 800 with a modified Canon 6D on my C14 at the F/11 Cassegrain focus. Guided with a Vixen VMC95L and a Celestron NexGuide V2 on a GCE mount. Stacking and processing with PI and PS (lights only.) The hi-res version is also available at:
The seeing was maybe only 4/10, so I think that the C14 should do better under more stable conditions, but with only minimal sharpening, this image is "close." Enjoy...
Captured June 8
Scope: ES102 apo, f/5.6 reducer-flattener; filter: Orion Skyglow; camera: stock Canon T3i; guiding: AT50GS, SSAG, PHD; mount: AVX
59 one minute lights @ ISO800, darks in camera, 36 t-shirt flats, 25 bias frames, all captured with BYEOS. Shot from my White Zone (Orange County, CA), processed in Nebulosity 3 and PS CS2
Here is my submission,my first capture of M13. Taken 5/17/2014
Celestron 80 ED f/7.5 main imaging scope
Canon 650D DSLR
Orion 80ST ,Guide Scope
Orion Sarshoot Autoguider
Orion Atlas EQG Mount
35X20" 800ISO Guided
No flats or bias
Moon Age 17.16 days
Bortle Dark-Sky Scale 5.0
Taken at Hawk/Grandpa's House Observatory
I know this doesn't even come close to others on here,yet here you go.
Here is my attempt, June 8:
100mm ED Skywatcher Pro @ f/7.65
Canon 500D stock, no mod
QHY5L-II + Orion 50mm guide scope
BYEOS + Star Tools
No darks, dithering
No flats or bias
Red Zone, street light over backyard always causing gradient issues
Great Globular Cluster M13
Location: Montgomery, AL
Imaging telescopes or lenses: StellarVue 115mm APO Refractor
Imaging cameras: Canon 60 DA
Mounts: Astro-Physics 1100GTO
Software: Photoshop CS, PixInsight, BinaryRivers BackyardEOS, Phil Harvey Dark Master
Accessories: Orion ST80 80 MM
Dates: May 10, 2014
HDR many different sub exposures
Probably kind of futile, but this was taken with modest (cheap)
equipment from a white zone. This was my 3rd attempt of M13 overall,
1st with the scope used.
May 23, 2014
Camera: Canon 400D unmodded
Scope: Celestron Omni 6" f/5 Newtonian, no coma corrector
Mount: Mizar, 1980's vintage
52 x 10s subs (subs are short due to limitations of the mount & L.P.)
Camera control: EOS Utility
ISO 800 w/In camera noise reduction
Darks, flats, bias: none
Processing: DSS, PS CS2
Location: Chicago Suburbs
Camera: Canon T3i Brent Oliver Baader Mod
Scope: Williams Optics GTF 81mm with built in field flatener
Mount: Celestron AVX with ADM mounting block
17 x 30s iso 800
Camera control: Nebulosity 3
Darks, flats, bias: none
Processing: DSS, PS CS6
Location: Carpinteria, California
Six Hours of M13
75x300" @ ISO 800
Canon 5DmarkIII (modded)
10" f/5 Newt, Baader MPCC
WO98FLT w/SSAG and PHD
Personal Remote Control Scope
High & Hot NM Desert
May 31, June 1, June 2
Camera cooled within homemade box
12 Darks, 12 Flats, 12 Bias
Here goes my M13 captured on May 31st
11x180 sec. @ 800 ISO
Canon 450D full spectrum
200mm f/4 Altair astro newtonian with Baader MPCC coma corrector
EQ6 go to mount
No flats, darks or bias, only dithering used.
It's been a while since I've submitted an image to the challenge. Here's my effort from the last two nights of testing prior to heading to Adin, CA for GSSP.
This image is a sum of 18 exposures at 1200 seconds each at 100 ISO.
Standard setup: Stellarvue SV4, Pentax K10D (modified and cooled - and broken shutter), SSF6 flattener
Filter: IDAS HEUIB II
Mount: Losmandy G11 with Gemini 2
Guiding scope: Stellarvue SV70ED with Orion SSAG
Guiding: Maxim 5.24
Exposure control: Star Labs DSLR Shutter and Pentax tethering software
Calibrated in Maxim with 10 darks, 21 flats, and 260 bias
Stacked in DSS 3.3.3 beta 51
Processed in PixInsight 1.8
Larger on Flickr | on Astrobin
Here is my submission
+darks, flats, bias
Explore Scientific 102 APO
Canon T3i (unmodified)
Capture and processed in BYEOS and Pixinsight
Higher resolution image
A somewhat mishap try, after 7 frames clouds rolled in and my gear was soaked with rain. 7x7min ISO320 with 6Da.
Larger field: http://www.astrostam...e.php?pos=-1497
Integration: 15x90sec lights only
Camera: Canon T3i unmodified
Imaging Scope: AstroTech 72ED
Mount: Meade LX200 unguided
Processing: Deep Space Stacker, GIMP 2.9
Location: Brookings, SD
Here is my M13 from last night:
Imaging telescopes or lenses: Orion EON 130mm ED Triplet APO
Imaging cameras: Canon 1Dx
Mounts: Orion Atlas EQ-G
Guiding telescopes or lenses: Orion ShortTube 80
Software: BackyardEOS, Adobe Photoshop CC, Pleiades Astrophoto PixInsight, Stark Labs PHD Guiding
Filters: Orion SkyGlow
Accessories: Orion 2" Zero-Profile Prime Focus Camera Adapter, Orion T-ring for Canon EOS, Orion Star Shoot Auto Guider, Orion 5-Position Filter Wheel, Orion EZ Finder Deluxe II Reflex Sight, Orion RockStable Anti-Vibration Pads
Integration: 10 lights and 6 darks - 120s each at ISO800
Posted 20 July 2014 - 03:16 PM
Posted 20 July 2014 - 11:28 PM
John, yours is a close second, IMO. I like the color contrast between the yellow and blue stars.
You guys leave the rest of us in the dust, though I do like when there are bonus objects like NGC 6307, and IC 4617in the background.
Posted 21 July 2014 - 12:11 AM
Posted 21 July 2014 - 10:01 PM
Posted 21 July 2014 - 11:04 PM
As soon as I started stretching, I could see that there was a LOT of stuff there. PGC galaxies down to mag 21.
Brian, Your comment led me to look at the full scale image on AstroBin. I counted at least 12 galaxies in the background. Very cool! I also noticed a few areas that look to my eye like hot pixel trails. Is anyone else seeing this, or is it just me? See the clip below from the upper left area of your full scale image. There are several more throughout the image.
I assume these can be removed through processing. Can anyone suggest a method to to that?
Oh, and Brian, please accept my comment as constructive criticism. I hope we are all here to share and improve our skills.
Posted 23 July 2014 - 12:21 PM