October 21, 2014, 03:11:55 PM

Author Topic: Why aren't zoom lenses faster than 2.8?  (Read 19707 times)

wickidwombat

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Re: Why aren't zoom lenses faster than 2.8?
« Reply #90 on: April 22, 2013, 07:10:30 PM »
I wish they would make a really fast standard zoom lens like a 30-90 f2.0 OS...

oh yeah I have been wishing a 35-85 f2 with IS would come out (for full frame not friggin crop!) for such a long time hopefully the narrower zoom range would allow more control over distortion and other imperfections than 30-90 which i think would be more compromised.
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Re: Why aren't zoom lenses faster than 2.8?
« Reply #90 on: April 22, 2013, 07:10:30 PM »

RGF

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Re: Why aren't zoom lenses faster than 2.8?
« Reply #91 on: April 22, 2013, 07:46:08 PM »
I wish they would make a really fast standard zoom lens like a 30-90 f2.0 OS...

oh yeah I have been wishing a 35-85 f2 with IS would come out (for full frame not friggin crop!) for such a long time hopefully the narrower zoom range would allow more control over distortion and other imperfections than 30-90 which i think would be more compromised.

Would you pay $5000 for such a lens?  Would you be willing to carry a 5 Lb lens with you?

I don't think there is a market for such a lens

tiger82

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Re: Why aren't zoom lenses faster than 2.8?
« Reply #92 on: April 22, 2013, 09:05:25 PM »
Check out the price, size, and weight of the Sigma 200-500 f/2.8
1D4 with 70-200 IS f/2.8L, 5D2 with 24-70 f/2.8L

wickidwombat

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Re: Why aren't zoom lenses faster than 2.8?
« Reply #93 on: April 22, 2013, 09:12:03 PM »
I wish they would make a really fast standard zoom lens like a 30-90 f2.0 OS...

oh yeah I have been wishing a 35-85 f2 with IS would come out (for full frame not friggin crop!) for such a long time hopefully the narrower zoom range would allow more control over distortion and other imperfections than 30-90 which i think would be more compromised.
absolutly yes to both however i dont think it would be 5lbs I might be fatter than the 70-200 with maybe an 82mm filter but not as long and perhaps a similar weight
Would you pay $5000 for such a lens?  Would you be willing to carry a 5 Lb lens with you?

I don't think there is a market for such a lens
APS-H Fanboy

psolberg

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Re: Why aren't zoom lenses faster than 2.8?
« Reply #94 on: April 23, 2013, 03:33:01 PM »
sigma makes a 1.8 zoom for APS-C. For full frame, you're just dreaming.

SambalOelek

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Re: Why aren't zoom lenses faster than 2.8?
« Reply #95 on: April 24, 2013, 06:11:29 AM »
It's definitely possible to make a practical <2.8 zoom lens with a conservative zoom range (not too wide and not too long).

The Tokina AF 28-70mm f/2.6-2.8 AT-X Pro II is a (discontinued) full-frame lens that is a tad faster than 2.8 at the wide-end, and it's not very large (A bit larger than the 24-105 f/4 IS). Moreover it's fixed length (does not extend while zooming). Quite a nice piece of engineering.
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Re: Why aren't zoom lenses faster than 2.8?
« Reply #95 on: April 24, 2013, 06:11:29 AM »