Originally Posted by
William W
I have two Venus Optics Lenses:
> Laowa 9mm F/2.8 Zero – D (used on an M5)
> Laowa 105 F/2.0 STF (Used on 5D Series)
As a general comment, both are gorilla-proof with smooth well damped actions. Relative and overall IQ in both lenses (and especially the 9mm, considering the intrinsic nature of UWA Lenses) is “excellent”.
I also have other UWA lenses – and more lately I use them more than I have ever done before.
I have used UWA lenses for Portraiture for a long time: mostly all of my Portraiture is made in Available Light.
Other than Portraiture, my main Photographic interest is Architecture, especially interiors of Holy Places/Buildings.
I don’t do a lot of Astro-photography, yet, I did teach the theory of it for as part of my teaching High School Student.
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My opinions:
Based upon my use of UWA lenses, the DIFFERENCE between FL = 18mm and FL = 15mm is H U G E, so huge that although I have a 16 to 35 F/2.8 for my 5D Series – I eventually acquired a 14mm F/2.8, mainly for that extra 2mm.
I don’t place a great deal of emphasis on ‘needing’ AF for Portraiture when using an UWA. I have some which are AF and some which are not, it really doesn’t worry me at all. Provided your camera has a good and easily understood method of informing you of accurate focus, I think that any Photographer who puts in a little bit of work and practice can learn to use MF, especially easy at UWA.
Recognize for Astro-photography, that the extra stop of lens speed on the 15/2.0 will be useful, sometimes critical.
Obviously my experience is not with the specific Laowa lens that you are considering and I can make NO comment regarding the Zeiss Batis 18mm f/2.8., but I hope that the range of these general comments are useful to you.
Good luck with your choice.
WW