CANON EF 28mm F2.8 LENS

[libraryman]

Hi all, has anyone used the Canon ef 28mm 2.8 lens to good effect as a astro photography lens?

I will be useing it on a 350d if it can be used.

Ray

[tony69]

good afternoon i also have the same camera and lens and have only been doing star trails and constalations not mounted on telescope it will be intresting to see what other members have to say .

[Bukko]

Hello, Ray,

it will be a great choice to capture large areas on the night sky.

It's best if you could mount the camera/lens onto a tracking mount. I use a small motorised EQ3-2 for this.

Find a good dark site.

Get a fair polar alignment and aim it towards the Milky Way.

Capture a series of 2 minute exposures at 400 ISO and stack them.

I also have a 350D and it WILL also need some dark frames to compensate for sensor noise.

Good luck

Gordon.

[libraryman]

He He, cheers gorden, thats great news, i was'nt sure about the purchase, but decided to buy it any way for other reasons, i'll be mounting it onto my Ci-700 probably next week, if it arrives in time?

Ray

[Beyond_Vision]

Great for Milkyway shots as already said. Is it a L series fixed focal length lens?

Regards

Kevin

[libraryman]

Hi Kevin dont know if it's L series, but it is prime focus. There were several choices 50mm f1.4 etc but the price was right!

Ray

[Bukko]

I don't believe Canon do a 28mm.f2.8 in the L range, but as a prime focus lens, it will be well corrected.

With long exporure imaging, I found my EOS350 had a hot area on the bottom right hand part of the CCD The higher the ISA setting, the worse it got. If you have the same, then the dark frame compensation will work pretty well.

Best quality in RAW gives a lot more flexibility later, too.

Gordon.

[libraryman]

Cheers folks for the help. does this answer your queries too Tony?

Ray

[Rob L]

Hi Ray,

How are you getting on with this lens?

I'm thinking it might be a good buy, I'm looking for something a bit wider than my 50mm 1.8.

Have you got any examples you can post?

Thanks, Rob.