Confused beginner

bdreporter · Nov 8, 2022

I just bought a Canon 1DXII, mounted a tamron 18-270, and began getting pictures like this. Have used this lens on 3 other canon bodies with no problems. 2 other lenses mounted on the 1DX body with no problems. This has me confused. Suggestions?

480sparky · Nov 8, 2022

I don't know the specifics of the camera and lens, but I'd say you've got a full-frame camera body and a crop-body lens. The lens isn't designed to cover the entire full-frame sensor.

mjcmt · Nov 8, 2022

Your lens is for a smaller APS crop sensor camera, while your camera has the larger full frame sensor. There's probably a crop sensor setting in your camera until you get a full frame lens for your camera. The lens mount is the same whether its full frame of crop sensor, just the sensor size in the camera is different.

Warfarin · Nov 8, 2022

Crop sensor lenses shouldn’t fit on a full frame in Canon. The crop factor lenses are EF-S and don’t fit.

Nikon photographer · Nov 9, 2022

Warfarin said:
Crop sensor lenses shouldn’t fit on a full frame in Canon. The crop factor lenses are EF-S and don’t fit.

Unlike Canon EF-S Lenses, the Tamron 18-270 will actually mount to a full frame body, but there is significant vignetting.

Warfarin · Nov 9, 2022

Ah I missed the Tamron part

wfooshee · Nov 10, 2022

As you zoom the lens out, it will eventually cover the entire image. As stated above, that lens is made for cameras with a smaller sensor, and at the short end of the zoom range it simply can't cover the full-frame sensor in your camera.

bdreporter · Nov 11, 2022

I appreciate the feedback. It was my error for not reaching an understanding between Aps-c and fullframe cameras/lenses. The tamron is not a full frame lens. will keep it for use on other bodies.

480sparky · Nov 11, 2022

Don't apologize. None of us were born knowing this... we all learned exactly the same way you did.

RAZKY · Nov 11, 2022

480sparky said:
Don't apologize. None of us were born knowing this... we all learned exactly the same way you did.

I know of one person who learned the difference between a crop sensor and full frame lens without first buying the wrong one! :smug:

greybeard · May 22, 2023

As others have written, the Canon 1DXII is a full frame camera and the Tamron 18-270 is a CROP FRAME lens.

petrochemist · May 23, 2023

RAZKY said:
I know of one person who learned the difference between a crop sensor and full frame lens without first buying the wrong one!

Actually there are quite a few of us who couldn't afford full frame bodies, until we'd been shooting & active in the Photographic community for years. We've been lucky enough to learn from queries like this.
Unlike Canon Sony, Pentax & Nikon cameras will share lens mounts between FF & APSC lenses/cameras. I think their FF bodies default to APSC mode when a crop lens is fitted

Personally I've fallen foul of other mistakes like buying a Minolta lens knowing I had adaptors for Minolta AF & SR, only to find they had another incomparable mount. Adaptors for this are rare & cost more than most of my camera bodies...
At least the OP can use his lens! :happyblush:

Original katomi · May 23, 2023

the problem is as covered by others. Looking at the spec;s there is just a small part that says it’s for crop sensor cameras
having said this and with respect to all that have posted, used creatively it can give a very different view/image to normal. I have two sigma wide angle lenses that are for crop sensor camera, but i intend to play with to get the image within the dark circle have fun... just dont even think of buying canon EFS GLASS