1. 3rd party lens is not fully licensed by Sony
2. 3rd party lens software is faulty and not properly optimized
3. 3rd party manufacturing flaws
So how do we know the 3rd party lens company is not at fault?
Agreed, and most likely we will never know exactly where the issue falls. But to give credit where credit is due, earlier this year, a Z8 firmware update broke some third party Z lenses, and Nikon ended up putting out a fix. For example, I highly doubt the megadap ETZ is officially licensed by Nikon, so I was pleasantly surprised to see Nikon fix the issue. It will be interesting to see if Sony ends up pushing out a fix or not. I am also curious to see what happens with the Viltrox TC 2x. The understanding was that Sony would not allow third party TC's.
On paper, the E mount currently has the lenses that interest me the most to add to my kit, such as the Sigma 300-600mm f4 and Sony 28-70mm f2. But between the third party lens limitations and the lack of a high speed camera at a competitive price, it has kept me waiting on the sidelines. Admittedly, it may be my own hang up, but I find it hard to justify spending 7k on an a1ii to then not be able to fully take advantage of the camera or lenses I would like to use with it. Now if Sony would allow Sigma lenses to work at 30fp and use Tc's I would definitely be considering committing to E mount and picking up an a1ii, even though I do feel it's overpriced.
Dec 05, 2025 at 06:39 PM
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1. 3rd party lens is not fully licensed by Sony
2. 3rd party lens software is faulty and not properly optimized
3. 3rd party manufacturing flaws
So how do we know the 3rd party lens company is not at fault?
Agreed, and most likely we will never know exactly where the issue falls. But to give credit where credit is due, earlier this year, a Z8 firmware update broke some third party Z lenses, and Nikon ended up putting out a fix. For example, I highly doubt the megadap ETZ is officially licensed by Nikon, so I was pleasantly surprised to see Nikon fix the issue. It will be interesting to see if Sony ends up pushing out a fix or not. I am also curious to see what happens with the Viltrox TC 2x. The understanding was that Sony would not allow third party TC's.
On paper, the E mount currently has the lenses that interest me the most to add to my kit, such as the Sigma 300-600mm f4 and Sony 28-70mm f2. But between the third party lens limitations and the lack of a high speed camera at a competitive price, it has kept me waiting on the sidelines. Admittedly, it may be my own hang up, but I find it hard to justify spending 7k on an a1ii to then not be able to fully take advantage of the camera or lenses I would like to use with it.
Dec 05, 2025 at 06:36 PM
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