Viltrox AF 27mm f/1.2 (Sony E-mount version) 

Canon will never approve these two lenses for RF mount.

​@OnlyCitrus that's the uncomfortable truth - except for manual focus lenses, which they allow.

What major brands you are talking about ?

Pretty sure it’s available for everything but Canon. And that’s because Canon won’t allow third party autofocus lenses.

It's available for X, E and Z-mount.

I’m wondering the same. I really like the Sigma 30mm f1.4.

What camera body are you using? I used the same lens for my A5100 for many years and the autofocus performance was horrendous. The problem was solved after I recently purchased a Sony A6400 last February and now the Sigma 30mm's autofocus performance is nearly at 95% accuracy in broad daylight shooting. If this Viltrox can match the Sigma 30mm's autofocus performance with the A6400, I would definitely consider it.

@@paulhernandez346 in my comparison, the Sigma was the lens with the amazing AF, always reliable, maybe 1% missed focus, even in darkness. The 30mm used to be horrendous up until an firmware update by Sigma. I used it on my a6000 and now on my a6700 and was very happy with it. I solved my AF problems with the Viltrox lens simply by using AF-S instead of AF-C - now it is as good as the Sigma's. In the end I sold the Sigma 30mm and kept the Viltrox 27mm. I do miss the small form factor sometimes, but the quality, especially wide open at F1.2 and 1.4 is miles better than the Sigma 30mm. Also, the Viltrox 27mm sits right in between the Sigma 30mm, which is a little too narrow for my liking and the Sigma 23mm, which is quite expensive where I live. I planned on getting the Sigma 23mm to complete my Sigma Trio/Quartett, but now I am happy to have an outstanding 27mm replacing two very good lenses at 23mm and 30mm! If you're fine with a bigger lens, than that is the way to go in my opinion!

@@romanminich879 Thank you for your detailed insights. I am definitely looking forward to the Viltrox because of what you shared. One last question: is the perspective distortion especially on the sides of the frame significantly different from the Sigma 30mm? The 30mm focal length on the Sigma seems to strike the right balance in terms of not being too wide and too narrow. Does the the 3mm difference make for a substantial difference?

​@paulhernandez346 I'm not sure if I completely understood you correctly, but I like the field of view of the 27mm quite a lot, but the difference was marginal! I think it depends on what your whole lens set up you have. In an ideal world I would like a 16, 23, 27, 30, 33/35, 40, 50, 56, 75, 85, and so on, but it really depends. For me, 27mm is a very likeable compromise between a 23mm and a 30/35mm, I'm quite fine with that. And I can promise: except for the size advantage, the Viltrox is better in every way. It is indeed an update for me going from the sigma to the Viltrox.

It doesn’t matter for the sake of his tests. It’s 24mp and Sony hasn’t come out with anything much higher for apsc

He is testing pure resolution under perfect lighting conditions - so other properties of the sensor doesn't matter.

Mister probably has a dozen cameras. Just uses whatever that suits the purpose of a particular test.

That lovely 24mp is still the standard of apsc as of today. And for the sake of comparison with all his lenses review.

Makes no difference, Sony's best APS-C camera is only 2mp higher resolution. Outside of improvements to readout speed and noise performance, the sensor in the a5100 is fundamentally the same as the one in the a6600 and as such resolves the same amount of detail.

It will work but has focus breathing

I was in your shoes a few month ago. Deciding between 24mm F.4 GM and this one. Ended up buying Viltrox 27mm F.2. Broguht it to Turkey on my vacation and a few trips in-country. I am glad I bought it. I even took a few night sky shots and it was stunned.

What comparable lens can you but for that kind of money them?

@@Geert890denk wel aan je spelling, Geert 👍

@@washedtoohot nee

@@Geert890 prima

It is not like this. Batteries in electronic devices have remaining energy when they reach 0.

@@Poli-IX That's exactly right. Just don't store it for extended periods of time in that state, because that would eventually do some damage.

You cannot fully discharge a lithium ion or LiPo battery in the overwhelming majority of devices. The battery "dies" when it can no longer provide the voltage needed for the device to operate, it still has a charge.

Original sony batteries store a lot of reserve power. Even if you use it to 0% and it can’t power the camera anymore, pop it into a charger that shows percentage, and it will show more than 10% left. I’ve used one from my nex-5 for more than 8 years and it still held it’s charge like a brand new one.