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Author Topic: Sigma 18-35 f/1.8 DC?  (Read 4019 times)

preppyak

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Sigma 18-35 f/1.8 DC?
« on: April 17, 2013, 07:27:54 PM »
May be fake, but, the rumored specs are thus. I hope it's true, because Sigma has really been pushing things forward lately

    Designed for APS-C based DSLR cameras
    Ultrasonic autofocus (HSM)
    9 aperture blades
    Type A (Art), which guarantees quality materials, metal bayonet
    Filter size: 72mm
    Minimum aperture: f/16
    Lens construction: 17 elements in 12 groups
    The maximum magnification ratio: 0.23x
    Weight: 810 grams, length: 121mm
    Angle of view: 76.5 - 44.2°
    Internal zoom and focusing
    Minimal focusing distance: 28cm

http://photorumors.com/2013/04/17/sigma-18-35mm-f1-8-dc-hsm-lens-leaked/


jcoz

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Re: Sigma 18-35 f/1.8 DC?
« Reply #1 on: April 17, 2013, 08:33:39 PM »
Canon 7D + Grip, Canon 50D + Grip, Canon EF 24-70mm f/2.8L, Canon EF 70-300mm f/4-5.6L IS, Canon EF 400mm f/5.6L

lonelywhitelights

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Re: Sigma 18-35 f/1.8 DC?
« Reply #2 on: April 18, 2013, 01:11:42 AM »
Sigma have confirmed that the lens is real, it looks fantastic. If only I still had my 7D

http://fstoppers.com/sigma-confirms-rumors-the-18-35mm-f1-8-is-the-real-deal
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SpartanII

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Re: Sigma 18-35 f/1.8 DC?
« Reply #3 on: April 18, 2013, 01:56:22 AM »
I think I'll stay aps-c a bit longer than planned. Certainly this should put pressure on Canon to become more innovative in the lens arena. Even more considering Sigma's success with their new 35mm f/1.4.

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Albi86

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Re: Sigma 18-35 f/1.8 DC?
« Reply #4 on: April 18, 2013, 02:34:54 AM »
Looks like the ultimate travel lens! At 35mm it will also do for a decent portrait lens on APS-C!

I'm becoming more and more a Sigma fanboy :P

xps

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xps

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Re: Sigma 18-35 f/1.8 DC?
« Reply #6 on: April 18, 2013, 02:59:10 AM »
Looks like the ultimate travel lens! At 35mm it will also do for a decent portrait lens on APS-C!

I'm becoming more and more a Sigma fanboy :P

+1 if: the IQ is ok & the price not on Canons pricing orientated

that1guyy

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Re: Sigma 18-35 f/1.8 DC?
« Reply #7 on: April 18, 2013, 03:41:13 AM »
GEEZUS I didn't even know that 1.8 on a zoom lens was possible. This is incredible. Good job Sigma.

Albi86

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Re: Sigma 18-35 f/1.8 DC?
« Reply #8 on: April 18, 2013, 04:11:01 AM »
Looks like the ultimate travel lens! At 35mm it will also do for a decent portrait lens on APS-C!

I'm becoming more and more a Sigma fanboy :P

+1 if: the IQ is ok & the price not on Canons pricing orientated

Don't expect it to be cheap. It's a unique lens, and Sigma will take its toll for it. Also, it seems that they didn't spare on special glass and on glass in general (810g!).

Rienzphotoz

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Re: Sigma 18-35 f/1.8 DC?
« Reply #9 on: April 18, 2013, 04:18:29 AM »
Holy 5h!t ... f/1.8 on a zoom lens? ... if its real, that'd be freakin AWESOME!
Canon 5DMK3 70D | Nikon D610 | Sony a7 a6000 | RX100M3 | 16-35/2.8LII | 70-200/2.8LISII | 100/2.8LIS | 100-400LIS | 40/2.8 | 50/1.4 | 85/1.8 | 600EX-RTx2 | ST-E3-RT | 24/3.5 T-S | 10-18/4 OSS 16-50 | 24-70/4OSS | 55/1.8 | 55-210 OSS | 70-200/4 OSS | 28-300VR | HVL-F43M | GoPro Black 3+ & DJI Phantom

Albi86

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Re: Sigma 18-35 f/1.8 DC?
« Reply #10 on: April 18, 2013, 04:19:15 AM »
Holy 5h!t ... f/1.8 on a zoom lens? ... if its real, that'd be freakin AWESOME!

It is real, it's been officially announced ;)

funkboy

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Re: Sigma 18-35 f/1.8 DC?
« Reply #11 on: April 18, 2013, 05:56:18 AM »
Judging from the way other ultra-large-aperture zooms are designed (e.g. the Oly 35-100 f/2) I'd guess that the design is basically a 35-70 f/3.5 with a reversed 2x teleconverter at the back.

I imagine that an FF version of this concept would weigh well north of a kilogram (& cost well north of a kilobuck).

Kudos to Sigma for being innovative once again.  Hopefully this will show C & N that there's real demand for more large-aperture lenses.

Viggo

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Re: Sigma 18-35 f/1.8 DC?
« Reply #12 on: April 18, 2013, 07:21:42 AM »
Judging from the way other ultra-large-aperture zooms are designed (e.g. the Oly 35-100 f/2) I'd guess that the design is basically a 35-70 f/3.5 with a reversed 2x teleconverter at the back.

I imagine that an FF version of this concept would weigh well north of a kilogram (& cost well north of a kilobuck).

Kudos to Sigma for being innovative once again.  Hopefully this will show C & N that there's real demand for more large-aperture lenses.

I've said this before and I'll say again, do we really mind a 1.4 kg lens that covers 24-70 at f1.8? We carry the 70-200 with that weight with no issues, so why not a 24-70?
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Albi86

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Re: Sigma 18-35 f/1.8 DC?
« Reply #13 on: April 18, 2013, 07:36:57 AM »
Judging from the way other ultra-large-aperture zooms are designed (e.g. the Oly 35-100 f/2) I'd guess that the design is basically a 35-70 f/3.5 with a reversed 2x teleconverter at the back.

I imagine that an FF version of this concept would weigh well north of a kilogram (& cost well north of a kilobuck).

Kudos to Sigma for being innovative once again.  Hopefully this will show C & N that there's real demand for more large-aperture lenses.

I've said this before and I'll say again, do we really mind a 1.4 kg lens that covers 24-70 at f1.8? We carry the 70-200 with that weight with no issues, so why not a 24-70?

I think there would be problems in doing a sharp lens with those features. If you look at the MTF charts for this Sigma it's clear that border performance suffers quite a bit wide open - and it's only a 15 MP APSC.

infared

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Re: Sigma 18-35 f/1.8 DC?
« Reply #14 on: April 18, 2013, 07:44:51 AM »
Lighter and smaller than the 24-70 2.8...

http://petapixel.com/2013/04/17/leaked-photos-appear-to-show-a-beastly-sigma-18-35mm-f1-8-lens/

Good size comparison to give you an idea of size and weight with something you might be familiar with, but not a fair lens comparison...the Canon is for FF cameras..not just APS-C.
Still... A very exciting lens!   I have the new 35mm f/1.4 and it ROCKS!
Can't use this one though as I am a FF user...but I hope the specs are incredible....I want the whole Art Line to be fantastic!
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