topic Re: 6D Mark 2 has only a circular image with Tamron 16-300mm lens in EOS DSLR & Mirrorless Cameras

6D Mark 2 has only a circular image with Tamron 16-300mm lens

dwelle4 — Tue, 31 Dec 2019 13:12:47 GMT

I'm getting only a circular image in the middle of the photo with my Tamron 16-300 mm lens. Have tried w + w/o lens hood and / or skylight filter, high and low apertures, etc. Is the lens simply designed for a camera with a smaller sensor? I bought the lens used and it seems to function in other respects. If it's a lens-sensor mismatch, I'll need to return it ASAP.

Thanks, Doug

Re: 6D Mark 2 has only a circular image with Tamron 16-300mm lens

jrhoffman75 — Tue, 31 Dec 2019 13:16:23 GMT

Welcome to the forum.

Yes, it sounds like your lens is designed for APS-C cameras and won't project a full image for full frame camera.

Re: 6D Mark 2 has only a circular image with Tamron 16-300mm lens

shadowsports — Tue, 31 Dec 2019 15:02:49 GMT

True indeed, thats an APS-C lens.

Full frame Tamron would be 28~300 (only $70) more if thats what you are looking for.

The Canon equivlent is "L" series and about 4x the price. Of course you would get a much better lens.

SIgma doesn't offer anything in that range (focal length)

Re: 6D Mark 2 has only a circular image with Tamron 16-300mm lens

ebiggs1 — Tue, 31 Dec 2019 15:25:44 GMT

The lens you bought, which is not designed for a 6D2 at all, and the one suggested are not worthy of a 6D Mk II, IMHO. Why do people get expensive top quality cameras like the 6D2 and then put the cheapest junk lenses on them? Remember it is the lens that makes the picture!

"... I'll need to return it ASAP."

Yes you do and start looking at better lenses. The EF 24–105mm f/4L IS II USM is an excellent choice for the 6D2. You will notice almost no zoom lens intended for high quality cameras have huge zoom ratios. Why? Because as the zoom ratio goes up the IQ of the lens goes down as a general statement. Very few exceptions.

Re: 6D Mark 2 has only a circular image with Tamron 16-300mm lens

Waddizzle — Tue, 31 Dec 2019 23:23:08 GMT

@dwelle4 wrote:
I'm getting only a circular image in the middle of the photo with my Tamron 16-300 mm lens. Have tried w + w/o lens hood and / or skylight filter, high and low apertures, etc. Is the lens simply designed for a camera with a smaller sensor? I bought the lens used and it seems to function in other respects. If it's a lens-sensor mismatch, I'll need to return it ASAP.
Thanks, Doug

How were you able to mount the lens without damaging the camera body? I suppose the lens has a regular EF mount, but EF-S optics. Send the lens back from where it came.

Avoid lenses that have focal ratios greater than 4 to 1. Focal ratio is the ratio of the longest focal length to the shortest focal length of the zoom lens. I carry three lenses to cover nearly that same range of focal lengths: 16-35, 24-70, 70-200.

You have a very nice camera body. It deserves high quality lenses, not budget lenses for entry level camera. There is one budget lens with exceptional performance, the EF 50mm f/1.8 STM lens. I recommend the EF 24-105mm f/4L IS III USM for use as a standard zoom for "walk around" scenarios.

Re: 6D Mark 2 has only a circular image with Tamron 16-300mm lens

jrhoffman75 — Wed, 01 Jan 2020 14:40:54 GMT

@Waddizzle wrote:
@dwelle4 wrote:
I'm getting only a circular image in the middle of the photo with my Tamron 16-300 mm lens. Have tried w + w/o lens hood and / or skylight filter, high and low apertures, etc. Is the lens simply designed for a camera with a smaller sensor? I bought the lens used and it seems to function in other respects. If it's a lens-sensor mismatch, I'll need to return it ASAP.
Thanks, Doug

How were you able to mount the lens without damaging the camera body? I suppose the lens has a regular EF mount, but EF-S optics. Send the lens back from where it came.

EF-S is a Canon only lens mount design. The optics in the subject lens are APS-C optics, which denotes sensor coverage size. All third party APS-C lenses are EF mount.