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The lens is compact, but don’t let the size fool you. It may be a G lens but it performs by a GM lens, and punches well above its weight. It’s unbelievably sharp, the color rendition is great, flaring is well controlled and it produces some very pleasing sun bursts. Chromatic aberrations are simply non existent in all my testing, and it renders backlit subjects beautifully. I’m primarily using it for landscape and Astro and it doesn’t disappoint in either scene. The lens is an Astrophotographers dream if you don’t mind the fixed aperture. I’ve been using it for 2 months and this prime is fixed to my camera most of the time. I’ve found nothing so far that I dislike about the lens, it’s near optically perfect.
I was after a wider angle lens and considering the GM 24mm as it's highly recommended by 99% of the photographers, but the lens price was holding me back from clicking on that 'buy now' button.
When I came across this G 20mm f1.8 and noticed its price I got a bit confused for the similarities with the GM but costing much less. I read lots and lots of reviews and watched to many videos and honestly some of the reviewers were even recommending this lens over the expensive sibling GM in what regards sharpness and cost. The autofocus is fantastic!
I gave it a try and I couldn't be happier. The lens is fantastic: lightweight, small and it's perfect for outdoors shootings and estate photography. On my first weekend with this lens I went to the Highlands and managed to capture stunning images. It was really worth it. It is basically a GM lens in a G body and price. It has all the features you'd find in the expensive brother, plus the wider aperture and lighter weight. The chromatic aberration is little to none and the vignetting isn't strong and easily corrected in post. The sharpness at 1.8 is really good. I have added some photos in this review to show what this lens is capable of.
I have only prime lenses (by personal choice) and this one is definitely be kept in my A7III for a long time. I am definitely happy with my purchase and would highly recommend.
Does exactly what it says on the tin. The 20mm focal length takes a bit of getting used to - a lot of foreground! The images are crisp and true and the super fast focal length makes handheld nightshots a real possibility. Great lens.
Das Objektiv macht nur Spaß! Hammerscharf, superschnell, klasse Freistellungen möglich, butterweiche Unschärfe, gestochenscharfe Nahaufnahmen - wenn nur alle Objektive so "klein" und so gut wären! Hier habe ich zum ersten mal nichts zu meckern - und ist mir das Geld wert!