5 things I HATE about the TTArtisan 90mm f/1.25 (on a GFX) & 6 things I love! 

For $200 used, vs $1600 used for a GF110mm... it's a no brainer for my very limited needs of portraiture (just my wife and daughters really). 8x cheaper? Absolutely. Stopped down to f/2 focus gets worlds easier and edge performance improves.

At f0,95 , you set a pre focus zone and move your body not the focus ring. An old photograph trick.

The start of the review is @ 1:50

Can you also review mitakon 65 1.4 on GFX mount? TY

Between 45-100 and 120mm macro I use with my s100, this TTA 90mm lens is absolutely amazing, like you said it let me slow down, relax and enjoy manual photography like I did decades ago. And results are stunning. And it saved me almost two grand on portrait lens when compared to famous 80mm F1.7.

Lovely. I'll genuinely consider this lens in RF mount. Thanks for your typically well fleshed review.

Great review. I’d love to see a comparison between this lens and the Zeiss 100/2 macro ZF2

Very pro review. Love the presentation.

Excellent review on this 90 mm lens ! But how about Dazzling us with the Sigma 85mm art lensm , and the Sigma 70 to 200 mm lens with your Fuji GFX50S ! I would love to see the image quality , and to learn more on the aspect ratio of these two lenses . On a medium format camera . Thank you ! ...Curtis

So it's the native gfx mount version of the lens? Any vignette? I saw the Leica mount adapted on the gfx has vignette

My only issues is vignetting on GFX even stop down 5.6 otherwise is almost perfect for a manual lens

A lens for gorgeous unique portraits, with bad results at all apertures on infinity or closest focus, so no landscapes, no objects but stunning beautifull portraits, my experience is based on on Hasselblad mount with the X1D

how's edge frame sharpness wide open?

I have the Canon EF 85 1.2 USM II that I LOVE but it has too many drawbacks and im looking for an alternative. Have you tried that lens of GFX? It’s great, definitely has character(lol) but the AF just isn’t usable at all and it’s a tank of a lens to carry around. Focusing ring is ironically very loose and by wire, so I can focus it quickly but it’s easy to overshoot the focus. Also, it’s 3-4x the price of this lens.

So is it a 56mm full frame equivalent?

It is an M lens mind set engineering lens. Not made for lazy guys.

To be correct, the crop faktor is x0.79, so this is a FF equivalent of 71mm F0.98, not 0.75 as this is not a real medium format sensor. So it's more a F1.0 which is close to a stop slower than 0.75.

Leica clone in looks only.

It looks like a horrible lens