Blurryeyed Loc: NC Mountains.

I shoot with a 5DIV and the 100-400 II with the 1.4X extender and am very happy with the results, I will say that your ability to crop is somewhat limited with the full frame camera.

Chvgal

Thanks for the tip Jim

CHG_CANON Loc: the Windy City

Try https://robertscamera.com/

Their shop downtown is pretty old school and nearish to the capitol building if you wanted to visit other sites while downtown. The new place up in Camel is much larger with much more equipment and accessories.

Chvgal

Thanks

Cookie223 Loc: New Jersey

Here you go!
https://robertscamera.com/about

I’ve purchased a couple of item from them, one being the Tamron, it looked brand new and came complete with everything when sold new.

BarTim Loc: Milan, Ohio

Once you see how sharp the Canon 400 f5.6L is you'll be hooked. The next best is Canon 500 f4L, but that's about $3000-3500 used (if you can find a good one).
I had the Tamron 150-600 and could never get it sharp enough for my tastes even after a trip back to Tamron.
Good luck!

Blurryeyed Loc: NC Mountains.

Just purchased a new Sigma 135mm f/1.8 A lens from them for $250 less than it was selling at Adorama and it did come with the US warranty. Purchase was made through Amazon.

mhephner

Can anyone tell me the difference in the Canon 100-400 gen I and Gen II?

graybeard

We must live on separate planets. $1760 breaks my bank several times over.

CHG_CANON Loc: the Windy City

You'll probably find this review useful for your question
https://kenrockwell.com/canon/lenses/100-400mm-ii.htm

Robyn H Loc: MainLine PA

Night and day. 1 is a push pull zoom, 2 is not. 1 is fairly large, 2 is fairly compact. 1 is a really good lens, 2 is a fantastic lens. They are also different shade of off white. The only things they really have in common are, made by Canon and focal length. I sold my original version so I could buy the new one.

Robyn H Loc: MainLine PA

Did it come with the USA warranty or a USA warranty?

Robyn H Loc: MainLine PA

The EF 100-400L IS II zoom is as sharp or sharper than the EF 400 f/5.6L prime. The 5.6L prime is a nice lens, light weight and simple. I had one for years but sold it when the 100-400L II came out.

imagemeister Loc: mid east Florida

Yes, they are equal at 400mm and f5.6 and with 1.4X also. I have done a test that I will publish soon.

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Bill Emmett Loc: Bow, New Hampshire

After shooting 1000s of bird and wildlife photos, I've gotten my best results using my Canon EF 100-400mm ver 2 lens. With this lens I may use a 1.4 Canon extender. I've also had plenty of great photos using my Tamron 150-600mm ver 1, but for shooting small song birds I've found this lens to be a bit heavy, and long. Both the Canon, and Tamron have image stabilization, which is alway on when shooting birds. Shooting wildlife such as deer, moose, and once in awhile a black bear, I'll take the Canon 100-400, or Canon Ef 300mm lens, both of those lenses are "L" quality and are extremely sharp lenses. I've used the Canon EF 600mm lens, but only a good tripod should be used with this lens. The 600mm I found to be heavy, unwieldy when shooting free hand in the field, but can be quite comfortable using a gimbal, on a sturdy tripod in a blind. Personally I like to shoot birds from a blind, using any of the lenses I mention in this post. I do shoot birds off feeders, or other lure, but I shoot the birds while perched not on the feeder, but on limbs of trees or on the natural ground cover. I'll shoot any and all shots with a sell ability eye. In your boots you should decide what type of shooting you want to do. You'll need a lens that will fit what market you may be shooting for. If you still have questions, you can rent these lenses and see how you can work with these lenses.

B