Sigma Teasing New Faster Than f/2.8 Zoom?

lol said:
Making some assumptions from image of the rear lens cap and front, I estimate it could have a 72mm filter thread. I don't think there is quite the size to go to 77mm but of course I could be wrong. Anyone else want to have a go?

Sticking to 72mm filter, that would allow up to 200mm f/2.8, but that is nothing new. If they use a bit of rounding maybe 150mm f/2. That would certainly be different to have a zoom ending there.

I'll stick my neck out in a different direction. Where does it say it has to be faster than f/2.8? How about something like a xx-300mm f/4.0 lens? Sigma already do the 120-300 f/2.8 in that ball park, but that is really heavy and not particularly affordable in absolute terms. Everyone else does f/5.6 or slower 70-300 class lenses. Having a f/4 zoom I believe would would be new in that length range and would really get my interest. Not that I need another zoom covering 300mm+ as I have 3 of the things already.

The next focal length up would be 400mm f/5.6 but that's been done many times.
Sigma also made 100-300 f/4 lens which back in the day was one of the good zoom lenses that Sigma made.
 
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You'll never figure out something new when you keep referencing something old.

So, enough for the lecture...what is the most obvious aperture?

f/2

What is a tele zoom length not so common these days yet possibly very usable for many?

50-150? 135-300?
 
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AE-1Burnham said:
...word's first Sigma Art "Macro" or maybe Sigma "M - Macro Lenses". That profile fits very closely to 150 2.8 Macro EX (see attachment) but yeah, we shall see. :-[

That image you included is weirdly similar, down to the odd little asymmetric jog near the center of the lens cap. Makes one think they actually used that lens for the silhouette.

Based on that, the copy from the ad asking what the most desired FL is, the roughly 72mm cap, and the fact that it appears to not have a zoom (the image shows that the lower protuberance isn't a zoom ring in that Sigma design), I'm guessing it is the 85 Art.
 
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None of the majors (Canon, Nikon, etc) offers a 150mm macro lens, or a lens in that range with optical stabilisation. My money are on the 150mm optically improved, USB dock compatible stabilised Art prime, offering 1:1 magnification. :-X
 
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