DPReview.com is closing April 10th - Find out more

Tamron 17-70 Stopped Changing Aperture

Started 2 months ago | Questions thread
miles500
miles500 Senior Member • Posts: 1,215
Re: Tamron 17-70 Stopped Changing Aperture
1

Further to my earlier post when I described the behaviour of the 17-70 on my XT5 when turning past f22 puts the camera into P mode with seemingly no means of changing the aperture - I tried the lens on my XS10 and was surprised to see that a further turn of the front command dial has no effect at all and the camera therefore does not change to P mode. I find it odd that the lens behaves differently on the XS10.

When i remounted my 17-70 to the XT5, to my dismay I found that the camera was stuck in P mode and the front command dial was inoperative - this is I think what happened to Batdude. I tried switching on and off with no improvement.  Only when I switched the exposure compensation dial away from the C position, did the front command dial operate the aperture as it should.  Oddly enough when I then reset the EC dial to C , the front command dial continued to operate normally. I conclude from all this that there is some sort of issue which concerns the operation of the EC dial and the front command one.  This is all beyond me!

-- hide signature --

Miles500

 miles500's gear list:miles500's gear list
Ricoh GR III Fujifilm X-S10 Fujifilm X-T5 Fujifilm XF 60mm F2.4 R Macro Fujifilm XF 18-55mm F2.8-4 R LM OIS +5 more
Keyboard shortcuts:
FForum PPrevious NNext WNext unread UUpvote SSubscribe RReply QQuote BBookmark MMy threads
Color scheme? Blue / Yellow