Erling G-P
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Sorry about the late reply. Weather has been so abysmal here that I haven't made any photos since September! So have gone all dormant, including with the forum. Here's my similar effort, including M82. Total 6.5 hours over two consecutive nights. Equipment as per signature, using the 200 PDS here
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It has been a long wait since April, when I made my last images, through abysmal spring weather and the bright summer nights. Initially shot 4 hours of the Crescent Nebula on Saturday. Star background had a reddish tinge, which I removed by making an inverted mask around the nebula, and then toning red down. While it made the nebula stand out fine in a more 'clean' looking image, a check of some other Crescent images revealed the entire area to be full of Hydrogen clouds. So more data needed; added another 3 hours Sunday, for a 7 hours total, which brought out the Hydrogen much better, to produce the attached image. Equipment as per signature. The 200PDS was used for this. Crescent Nebula is Caldwell 27 / NGC 6888
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Amazing image! All the hard work was certainly worth it!
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Stunning image!
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SGL Challenge 3 - A galaxy far, far away
Erling G-P replied to MartinB's topic in SGL Challenges and Competitions
Second entry is M109, taken on April 15/16. Again 200PDS, 81 x 3 minutes = 243 minutes total (4 hours). -
SGL Challenge 3 - A galaxy far, far away
Erling G-P replied to MartinB's topic in SGL Challenges and Competitions
Some very fine contributions already and mine certainly can't hold a candle to them, but will post them anyway. Spring here just as winter has been abysmal, with next to no clear nights at all. Still have two images, made in April to submit, but unlikely to get more, given the quickly waning darkness. This first one is the Leo Triplets. Taken with the 200PDS on April 13/14, 74 x 3 minutes = 222 minutes total (3.7 hours). -
Posted this before, but here is my best effort yet, from last year, with the 200PDS. Both cropped & full field. Rest of equipment as per signature.
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Here's my attempt with the 200PDS from last year. Certainly nothing to write home about. Have cropped much of the image away - my full field looks much like yours. Equipment as per signature. Edit: 71 x 3 minutes = 213 minutes or 3.55 hours total
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Nicely done! And it was hard not to spot, when using almost the same equipment - this single shot's field of view looks a lot more like mine
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Very nice images for sure! Envious of your star colours in the Rosette shot; in my own with the 130PDS, the blue stars remain completely white, no matter how high I crank the saturation. Very nice Orion Nebula too, but am puzzled by your Andromeda Galaxy - is it a mosaic? In my own image, also with a DSLR 'crop sensor' & 130PDS, I can barely fit the galaxy across the image, so wondering about your much larger field of view.
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Portable astro setup
Erling G-P replied to Tristan's topic in Getting Started Equipment Help and Advice
It sounds like you're going to rely on battery power? If so, then keep in mind that a cooled camera has a fairly hefty power consumption - the cooled Canon I'm using is spec'ed as requiring a 12V 5A power supply. I measured it drawing 3.5A (nearly melted the thin wires of my multimeter!). I'm assuming the same goes for cooled, dedicated astro cameras, so others please correct me if this is not the case. I have the larger Skywatcher powertank from a couple of years back.; I believe it's 17Ah. Tried powering both my Heq5 & camera with it, but voltage dipped too low for the mount's liking. Even without this issue, it would only have lasted 3-4 hours at most - and this was without guiding, which increases the mount's power consumption and needs power for the guider too. Thus I now use mains power, which is possible as I image from my garden, but going to another location would be problematic - would need an additional power tank, or a larger one with higher capacity, neither of which is very portable at all. -
Imaging with the Samyang 135mm f2
Erling G-P replied to Uranium235's topic in Getting Started With Imaging
WOW and then WOW again!! Absolutely stunning image! If ever there was a sales add for this lens, your image has got to be it. Can't believe you used a modified 700D, as that's very much what I have. Looking at all the various image runs with different filters and exposure lengths going into it, I take it it was not a simple job making this however, but boy what a result! -
I have a 700Da and yes, you can certainly zoom in live view. In the upper right corner of the rear of the camera body are two small round buttons which zoom in & out.
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