Eagle Optics sells a tripod carrier that resembles a backpack.. it is called a glasspack. I have one and like it. I have used for for both a spotting scope and camera.

Thanks for the reply MT. I will donate it to our High School art dept which still does some work with film. I appreciate the info you have posted about the Sigma 150-500 bought one and love it.

I came across a canon rebel 750 (film camera) with a Sigma lens
a Sigma zoom AF - a 35mm to 135mm. Is it compatible on my Canon 3t?

Here are couple I took in Colorado a few days ago.

sigma 150-500 @500mm is0 3200, f10, 1/3200 sec


same setting only f13

I took pictures of hummers last week and stopped the wings at 2500 sec.

what kind of bird is it????

the elk pic was 4272x2848 res., iso1600, 370mm, f8, 1/500sec, no crop

Hummer #1 4272x2848 res, iso 3200, 500mm, f10, 1/3200sec no crop

Hummer #2 same res. same iso, 500mm, f13, 1/3200 sec, no crop

elk was hand held, hummers on tripod, my camera is a canon t3 12mega pixel.

It is much easier than I expected. The optic stabilization works extremely well. I always shot at 500th of a sec. or higher in fact to stop the hummers wings I think I was shooting at 1/2500 of a second. I also used spot focusing. I probably took over 400 pictures of elk, moose and birds all hand held and they were very sharp. I don't think you can go wrong with this lens.

I was within 20' on the hummingbirds and was at 250-400mm and probably 60-70 at 500mm yards on the elk. My camera is a t3. I took about 700 pictures with that lens during the week and
most of them were at 500mm and they were very very sharp the hummingbirds were taken with a tripod the elk were handheld. The stabilization on the lens is incredible. Shot a lot of wildlife pics, elk, deer, moose and birds all handheld at 500mm and they are very sharp. If you want to send me your email I can send you some more pics if it will help you decide....

Went to Colorado last week and got to give my new Sigma 150-500 a workout. Very, very pleased with the results. Thanks to all of you who recommended this lens.

Great Egret

Will be in full color next summer

I second the Red-winged Blackbird.

Thanks to recommendations from members like MT Shooter and several other the Big Brown Truck brought me a new Sigma 150-500 lens yesterday. The attached picture was among the first pictures I took with it. Handheld in the wind and I am extremely happy with the results. Setting were ISO 250, f9, 1/500 sec, 500mm on a Canon T3. Thanks guys I truly enjoy all the advise and help given on this forum.

Scissor-tailed Flycatcher

Sam's Club is offering the same camera for $599 with an 18-55 and a 75-300 lens plus 8gb card and bag.