Archive for the “Canon 200mm prime lens” Category

As well as capturing asteroid JO25 2014 on the single Sky 90/M26C – I also managed to grab 16 subs on the two 200mm lenses with the Trius M26Cs.

Sub number 12 (counting down from the top) is missing as I had cloud over the region during that 5-minutes.

As I couldn’t properly process this data myself, I sent it over to Noel Carboni in Florida USA who did the most superb job as you can see below.  Thank you Noel!!

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Processed to show the dark tendrils that permeate all dense star regions:

 

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A 200mm lens 2-framer taken over 2 nights this week – Procyon & Gomeisa in Canis Minor.

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No Moon and some clear sky between 8:15 p.m. and 10:00 p.m.

Set up the 2 x 200mm lenses on the Procyon region for the first of 2 frames containing Procyon and Gomeisa.  Got the Procyon frame and cropped it down to fit with some earlier Procyon data taken with the Sky 90.  Here is the Registar bolt-together of the 2 datasets.

11 x 9-minute subs with the 200mm lenses and M26C cameras from last night.

Around 3-hours of 10-minutes subs from the Sky 90 and M25C from earlier.

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And here is a 2-frame mosaic combining the IC2087 and SAO76573 frames taken with the Canon 200mm prime lenses and M26C OSC CCDs.

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Taken a couple of nights back, this is 10-hour’s worth of 20-minute subs centred on SAO67573 one frame to the right of IC2087 also taken with the Canon 200mm lenses and M26C OSC CCDs.  

At the top/centre there is a very interesting nebula Vdb 27.  The whole region of course is full of dust and dark nebulosity all part of the Taurus giant molecular cloud.

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A rather “quick and dirty” image of the region.  I need to get a lot more, deeper, subs of this region if I can this winter.

 

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Unbelievably last night was the 3rd clear night in a row – Moonless too!!

So – making best use of this gift I managed to grab the final left hand frame on the North America 3-pane mosaic.

This is a 29-hour total exposure time marathon using 20-minute sub-exposures.

2 x Canon 200mm prime lenses with 2 x Trius M26C OSC CCDs.

The first 3-framer with the Canon kit.

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Got 6 x 20-minute subs with the Canon 200mm lens which I added to some earlier Sky 90 data.

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Got the final bit of data on this one last night.  This is a 2-framer using the Canon 200mm prime lenses and Trius M26C OSC CCDs on top of the Paramount ME.

Main North America frame is 9 hours and 40-minutes total using 20-minute subs.  The right hand frame (with Deneb) is 10 hours and 20-minutes total data time using 20-minute subs.

The ONLY negative thing with the 200mm lenses is the bad ghost flaring from any bright stars in the image.  This makes it an ideal imager for regions like IC2087 where there are hardly any stars (let alone bright ones) to be seen.

 

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