Gilkar

I do quite a bit of high school sports action photography. I have found that my Tamron 70-200 lens works very well, (most of the time), with my Z-6 mirrorless cameras. However, from day one the lens has moved slightly in the FTZ adapter. I queried you tube about this problem and the suggested fix was to check the screws on the back the lens and on the adapter to make sure they were tight. I did that and all the screws seemed to be as tight as they could be. However the lens still moves, (rotates), slightly. This movement does not affect the focus. It DOES seem to affect the exposure. Every so often the normal exposure will jump to extreme over exposure. I attributed this to the lens losing touch with the contact pins where it mates with the FTZ adapter. The problem is not continuous and seems to correct itself on the next exposure. However, it continues on and off throughout the shoot. I'd be interested if any hoggers have encountered a similar problem and what you did to correct it. At this point I am thinking I either need a new lens or a new adapter. Thanks in advance for your suggestions.

TriX Loc: Raleigh, NC

Regarding the occasional overexposure, do you have the anti-flicker feature on your camera enabled when you shoot indoor sports? Many types of indoor gymnasium lighting “flicker” from min to max intensity 120 times/sec. Too fast for your eye to notice, but it can make a noticeable difference in exposure between frames. If you don’t have your camera’s anti flicker feature enabled, that could be the cause of your occasional over exposure instead of misaligned contacts - worth checking if you haven’t already.

Gilkar

I am not sure I will check that. Thanx for you quick response!

letmedance Loc: Walnut, Ca.

I recall one of my lens did the same in the FTZ adapter but after giving it an extra little twist it locked in correctly.

Gilkar

Thanks for your reply. The lens is locked in but problem still exists

User ID

The slot on the rear of the Tamron that captures the latch pin of the FTZ may be wider than the Nikon spec for it.

Gilkar

Thanks for that tip I'll check it. If it is too big there's probably no way to correct it.

Grahame Loc: Fiji

I use the Z6 plus FTZ with a number of lenses including a couple of Tamrons but have not had any problems. What I do find is that my FTZ feels rather tight which may be a reflection of tolerances.

I assume you have cleaned all the contacts and faces just in case? It may also be worthwhile looking at the exif of the images, the dodgy ones and those each side for any clues.

Picture Taker Loc: Michigan Thumb

Tamron can and does adjust some lenses for my Canon. It may need that, call Tamron Tech (631)858-8400

Gilkar

Thank you for that information I will contact them

Gilkar

Thankyou for your insights. I will check the exif files, (why didn't I think of that?), and the contacts.

gvarner Loc: Central Oregon Coast

I’ve had the same over exposure problem when using my 2x extender on my Nikon 18-200 and D7200. Most of the over exposures I could fix in RAW. The extender is not a Nikon brand. Probably just poor design but now I think I’ll check the screws on the extender.

KLambar Loc: New Jersey

Maybe the FTZii might correct problem.

BBurns Loc: South Bay, California

revhen Loc: By the beautiful Hudson

Last resort: tape it.