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Sigma 20mm review coming ...
#11
Quote:One aspect is surprising about this lens ...
 

Ehm .... you don't notice the weight?

;-)

#12
Quote:Ehm .... you don't notice the weight?

;-)
 

Optically ... ;-)
#13
Quote:Optically ... ;-)
Da boken? Big Grin
#14
Da bokeh is fat, bro! [Image: pirat20x17.gif]

#15
True dat! (I guess a 20mm f/1.4 lens can have a pretty unique signature...)

#16
Yes, it can. Only trouble is, the camera's AF or whoever runs the focus-lever should do a very good job...

#17
Some cool shots in that gallery (others not so much...) But in a pinch one can use LiveView 10x magnification, and in a really desperate case, focus manually. I know I've done that, despite being averse to MF...

#18
It's contradicting the intended use: any f/1.4 lens I own, I bought to be able taking pictures in dark places. If that means, I have to use LV and focus manually because PDAF cannot deliver the necessary accuracy then why bother about f/1.4 lenses in general? For fast wide angles it's much tougher to get a precise AND quick AF.

 

I already compared PDAF with CDAF on that lens, there's no single picture when PDAF was more precise although I did AFMA - what else can I do?. To do AFMA, you need to be really close at the target: 20 mm × 50 = 1 m distance, but what about infinity and what about those big AF points which leave me totally in uncertainty where this thing will focus?
#19
Quote:It's contradicting the intended use: any f/1.4 lens I own, I bought to be able taking pictures in dark places. If that means, I have to use LV and focus manually because PDAF cannot deliver the necessary accuracy then why bother about f/1.4 lenses in general? For fast wide angles it's much tougher to get a precise AND quick AF.

 

I already compared PDAF with CDAF on that lens, there's no single picture when PDAF was more precise although I did AFMA - what else can I do?. To do AFMA, you need to be really close at the target: 20 mm × 50 = 1 m distance, but what about infinity and what about those big AF points which leave me totally in uncertainty where this thing will focus?
Your demands are elevated indeed. I know my 24/1.4 L is mediocre for AF accuracy in the dark unless I'm using it at point blank range (and even then...) Serves me right for trying to shoot distant subjects below f/2. Smile The 16-35/4L IS is sometimes a better choice... despite being 3 stops slower, it seems to have a much greater hit rate. The shutter speed is the only concern in this case.

#20
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