Canon EF 600mm f/4L IS II USM

fotoi wrote in post #19084449
No, I purchased the 1.4x and 2.0x Version III models several years ago. I have never owned the version II tele-converters.

I am sorry. I didn't make myself clear. I was talking about the version ll of the lens.

Nascar Nut wrote in post #19084453
I am sorry. I didn't make myself clear. I was talking about the version ll of the lens.

My bad. I own Version II of the 600mm lens, purchased new in October 2015. I use it mostly for bird photos (with the 1.4x teleconverter), and moon rise photos with the 2.0x teleconverter. The only real advantage of the Version III 600 mm lens is lighter weight, as the image quality is almost the same (according to The Digital Picture).

Black necked grebe

IMAGE LINK: https://flic.kr/p/2jfN​P97

Nascar Nut wrote in post #19084258
Thanks for the link fotoi. Very informative. Also thanks PCousins for your info. Your having used both and prefer the second version over the third is what I was thinking after all the reading I have done. I use a tripod most of the time so the extra weight wouldn't matter much. My camera body is a 5d4. Out of curiosity, what version of a 1.4 tele works best with this lens?

Having used both lenses, I didn't notice any discernible difference in sharpness or IQ performance. It's all about the weight savings, and since you're using a tripod and the weight isn't a concern to you, 100% go with a 600 II. Fantastic combo when paired w/ the 5D4. Also, recommend the 1.4 III TC, as it (along w/ the 2.0 III) was released in tandem as the Mark II super teles back in 2011.

MatthewK wrote in post #19087411
Having used both lenses, I didn't notice any discernible difference in sharpness or IQ performance. It's all about the weight savings, and since you're using a tripod and the weight isn't a concern to you, 100% go with a 600 II. Fantastic combo when paired w/ the 5D4. Also, recommend the 1.4 III TC, as it (along w/ the 2.0 III) was released in tandem as the Mark II super teles back in 2011.

Thanks for the info you shared comparing the two lenses. I think the second version is the way to go for me also. What did you think about the images taken with a 1.4 lll attached?

Weja wrote in post #19084478
Black necked grebe

Incredible photo.
So much detail in this and beautiful light.
The water droplets add to the appeal.
Very nice indeed.

Blue tit

Photo from Weja's gallery.

Nascar Nut wrote in post #19087742
Thanks for the info you shared comparing the two lenses. I think the second version is the way to go for me also. What did you think about the images taken with a 1.4 lll attached?

Since I was shooting small birds on full frame body, I always used the 1.4 to get me to my ideal focal length. There’s a tiny bit of IQ loss if you compare it to just the bare lens, but it’s negligible. I was always more than pleased with the shots I came home with.

On the other hand, I tried to avoid using the 2.0 TC; IQ still great, but much more evident IQ hit.

Eurasian jay

Photo from Weja's gallery.

Roosevelt elk cow coming over to investigate me.

European greenfinch male

Photo from Weja's gallery.

Marbled godwits

Backyard visitor