Tamron 28-200 Focus Tracking Issue

snegron7
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p.1 #1 · p.1 #1 · Tamron 28-200 Focus Tracking Issue

I just got a Tamron 28-200 for my A7c. It's a lot smaller in size than I expected (which is a great thing). I like that the zoom ring is pretty stiff (less of a chance of zoom creeping).

The only issue I have noticed so far is how poorly it performs with AF tracking. I tried it indoors and outdoors. It performs a bit better outdoors under bright sunlight, but even then the AF tracking is not as "sticky" as it is with other lenses. The AF tracking works slightly better at 28mm, but poorly at 200mm even in bright sunlight.

Is this normal for this lens?

Nov 25, 2023 at 08:22 AM

LeoNguyen
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p.1 #2 · p.1 #2 · Tamron 28-200 Focus Tracking Issue

Yes in my experience with my own lens. However, Tamron recently released a firmware (4.0) that’s supposed to improve AF tracking. I’ve updated my lens but have not tested it. Other people may be able to share their experience with the firmware update

Nov 25, 2023 at 10:33 AM

jrtriebe
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p.1 #3 · p.1 #3 · Tamron 28-200 Focus Tracking Issue

There was a recent upgrade in the firmware for the 28-200mm f2.8 lens that is supposed to improve tracking. Here's a link:
https://www.tamron.com/global/consumer/support/download/lensutility/?

https://www.tamron.com/global/consumer/support/download/lensutility/?sc_src=email_48254&sc_lid=4584658&sc_uid=RBPFSlapRz&sc_llid=4137&sc_customer=6288DFA3A6BA4301DB08297B0BDE871E6C33EB95571E5D00741E2929CE63DF95&utm_medium=Email%2048254&utm_campaign=Firmware&utm_source=231120_FRM_FRM+Tamron+v2.0+for+Sony+E-Mount+35-150mm+F%2F2-2.8+Di+III+VXD+%26+28-200mm+F%2F2.8-5.6+Di+III%2020231121&utm_content=&utm_term=View+Support+Page&encEmail=6288DFA3A6BA4301DB08297B0BDE871E6C33EB95571E5D00741E2929CE63DF95

Nov 25, 2023 at 10:38 AM

snegron7
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p.1 #4 · p.1 #4 · Tamron 28-200 Focus Tracking Issue

Thanks for the info and the link!

Nov 25, 2023 at 02:56 PM

Tarekith
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p.1 #5 · p.1 #5 · Tamron 28-200 Focus Tracking Issue

Same issue with my 28-200, the update helped a little but it's a lot slower than native Sony lens.

Nov 25, 2023 at 03:06 PM


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