Tom Kelley Loc: Roanoke, Virginia

I'm considering buying this one to use on my new 6D. I have the 24-105 STM and the Sigma 150-600, and love both of them. I'm curious though, if i could do some fairly heavy cropping on my 6D and possibly sell the 150-600 because of it's size and weight. I know i can't stretch to 600 with any success, but maybe to around 400-500.

Gifted One Loc: S. E. Idaho

I have all of the produce but the Mark 2. I think that you are after a very elusive think. I have had many copies of 70-200/300 and just hard to find the right item. Perhaps I am just not a long shooter. I would supplement the 150-600 with a Refurbished f/4 70-200.

J. R.

SharpShooter Loc: NorCal

Sorry, have not tried one. Is it the same design as the new 100-400 twister?
Why have you not considered the 100-400? Some sources say it will out shoot those cheap 600's just by cropping. With a 1.4x you're almost there using glass and keeping all your pixels.
An alternative might be to sell the 6D and get the 5Ds used, and using the lenses you have crop the crap out of it!!! Just an idea!
SS

Tom Kelley Loc: Roanoke, Virginia

Actually, that was exactly my thoughts when i began 'Thinking' lol. I was just trying to keep the cost down as much as possible. Thanks for the tip.

Tom Kelley Loc: Roanoke, Virginia

Actually, that was exactly my thoughts when i began 'Thinking' about this. I was just trying to keep the cost down as much as possible. Thanks for the tip.

Tom Kelley Loc: Roanoke, Virginia

Thanks, i may consider that.

Gifted One Loc: S. E. Idaho

Tom, in my case I have Sig 150-500 and Tamron 150-600 both purchased at great value. I have the f/4 24-105 L. A little jump from 105-150 but for me as it sounds like you is LBs or awkwardness.

SS had an idea, but you already have the Super Telly. The 1-4 with extender is a great comb but about 6x more than I want to go.

A month ago in Tetons carrying UWA Spur Tel two bodies and reality set in. No ideal.

J. R.

amfoto1 Loc: San Jose, Calif. USA

Have you considered the Canon 100-400mm II instead? It's one heck of a sharp lens, might be all you need.

The 100-400mm isn't small, by any means. It weighs 3.5 lb.... I'm sure a whole lot more than the 70-300mm. (But the guys at Lensrentals.com called the 100-400 II the "best built zoom they'd ever seen" when they took one apart to see what's inside.)

How the 100-400mm II compares in weight to your 150-600mm depends upon which one you have. The lower priced "Contemporary" 150-600mm weighs in about 4.3 lb., while the beefier "Sport" version is two lb. heftier at 6.3 lb.

Of course, for the price of a 100-400mm II, you could get the EF 70-300mm II and an APS-C camera such as the 80D to use it on (with 24MP, much faster frame rate and far more advanced AF than your 6D).

Best of both worlds... having both FF and APS-C cameras.

Beware of cropping. We compared 21MP 5D Mark II images cropped down to "APS-C size" against uncropped 7D 18MP images... same subject from the same distance, very carefully focused, using a tripod and Live View/mirror lockup, remote release. We were trying to answer the question whether the "free 1.6X teleconverter effect" ("free" as in no loss of light) was myth or fact. The crop camera's images were quite obviously superior to the FF crops. That makes sense when you consider that by the time a 21MP FF sensor image is cropped to match APS-C... you're only left with an 8MP image. If I recall correctly, 6D is 20MP, so it would be slightly less than that, if you crop that much to offset the change in lens focal length.

Tom Kelley Loc: Roanoke, Virginia

Thanks so much for the great information. i may have made a bad move on the FF 6D. I can still return it to B&H, so maybe i'll consider trading it for the 80D. From what i had read, the FF Cameras offer quite better image quality than crop ones. I guess it depends on which FF you choose.

imagemeister Loc: mid east Florida

If you want to crop, you need to be on a high density crop sensor camera - not FF ! And, you need a very GOOD lens - like the 70-300 L or the older 100-300 L.... with these two things and proper technique, you CAN stretch to 600mm and use pixel enlargement if needed.

imagemeister Loc: mid east Florida

"From what i had read, the FF Cameras offer quite better image quality than crop ones."

Yes, but NOT for cropping !

imagemeister Loc: mid east Florida

OK, except the 5DS....maybe