Images from Kelling

[julian]

Bought an Ioptron skytracker camera mount Mk2 at Kelling Heath Star party with some others, bulk  buy better price. Here is the first processed image using it.
Canon modified 40D, Canon 50mm F1.4 lens set at F4 due to stars not being round at F1.4, ISO 800, Astronomik CLS filter, 23X300 seconds darks and flats used. Processed with Pixinsight which I have just started using for the first time and Photoshop.
Cygnus
Top left  is North America Nebula and Pelican Nebula and bright star nearby is Denb, bright star near centre is Sadr, .Bottom left Veil Nebula



Link to larger images.
http://farm4.staticflickr.com/3797/10411646574_e7603b6f3c_b.jpg
http://farm4.staticflickr.com/3797/10411646574_fe05c32c0c_k.jpg
California Nebula and M45
Canon modified 40D, Canon 50mm F1.4 lens set at F4, ISO 800,Astronomik CLS filter, 17X300 seconds darks and flats used. Ioptron skytracker camera mount. Processed with Pixinsight and Photoshop.



Link to larger image.
http://farm4.staticflickr.com/3774/10410336116_9011c116cf_b.jpg
http://farm4.staticflickr.com/3774/10410336116_5c54e867e8_k.jpg

Orion was a bit low down, but I thought I will give it a go.
Canon modified 40D, Canon 50mm F1.4 lens set at F4, ISO 800,Astronomik CLS filter, 20X300 seconds darks and flats used. Ioptron skytracker camera mount. Processed with Pixinsight and Photoshop


Link to larger image.
http://farm8.staticflickr.com/7457/10410479433_8800f332b5_b.jpg
http://farm8.staticflickr.com/7457/10410479433_53ea924a18_h.jpg

[MarkS]

They've come out well Julian.

I particularly like the one of the Pleiades and the California Nebula - it's not a view I've ever seen before.

Orion has also come out very well.  Is the Cygnus image mirror flipped?

What shape diaphragm does the lens have?  It creates interesting (but not objectionable) diffraction spikes.

[RobertM]

Nice images Julian.  I took some with my SkyTracker but they didn't come out anywhere near as well (crap lens).

Robert

[julian]

Is the Cygnus image mirror flipped?

Yes it was, now changed thanks

What shape diaphragm does the lens have?  It creates interesting (but not objectionable) diffraction spikes.

I think its is octagonal.

[julian]

Thanks Robert

[JohnP]

You did well Julian - you got a lot of data. I would be interested in seeing a full size crop of one of the images - perhaps Orion or M45... if possible?

John

[Rocket Pooch]

Really good images those I like then a lot.

[Carole]

Excellent results Julian, the larger files are great too.

Carole

[Mike]

Wow. These are great Julian.

[MarkS]

What shape diaphragm does the lens have?  It creates interesting (but not objectionable) diffraction spikes.

I think its is octagonal.

Are the blades straight edged or some kind of curve?

[Fay]

Great Julian, i really like Orion. glad to see you got 300 sec subs!!

[julian]

Are the blades straight edged or some kind of curve?

Mark they look like this but not this lens.

I would be interested in seeing a full size crop of one of the images - perhaps Orion or M45... if possible?

John they have only  been cropped about a diameter of Denb due to stacking

And thanks for all the feedback
Julian

[Kylee]

Love these pics 

[julian]

Thanks kylee

[MarkS]

A Pleiades and California image is today's APOD:
http://apod.nasa.gov/apod/ap131122.html