Sigma 30mm f1.4 (Images in Post)
- Thread starter Hacker
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Hey Hacker,
The articles i read all point towards the lens being available from April '07 onwards...
Where did u get the info that it'll be avail in Dec?
jOhO
Senior Member
this lens CAN be sharp from sigma, i've seen a friend's copy that made me keel over at it's sharpness even wide open, HOWEVER, the QC from sigma is a little off, u need to really test the lens to make sure that you get a good copy.
statments substantiated from speaking to retailers and having handled a couple of them myself. it's a lens that i want to buy, so i will always itchy fingers go play with them whenever i'm at any store, but i've got other purchases first, this is really quite last priority. will still own it eventually. for that price, can't really go wrong! :thumbsup:
btw, i assume this sigma (as in the glass and the image quality) is the same for 4/3 system or nikon mount, becos i only had experience with the nikon mount version.
back to the images posted here, i TOTALLY agree with streetshooter. TOTALLY. :thumbsup:
statments substantiated from speaking to retailers and having handled a couple of them myself. it's a lens that i want to buy, so i will always itchy fingers go play with them whenever i'm at any store, but i've got other purchases first, this is really quite last priority. will still own it eventually. for that price, can't really go wrong! :thumbsup:
btw, i assume this sigma (as in the glass and the image quality) is the same for 4/3 system or nikon mount, becos i only had experience with the nikon mount version.
back to the images posted here, i TOTALLY agree with streetshooter. TOTALLY. :thumbsup:
Hacker
Senior Member
Hey Hacker,
The articles i read all point towards the lens being available from April '07 onwards...
Where did u get the info that it'll be avail in Dec?
Digilux 3 will be available15 Nov in Amazon. Referring to Digilux.
I was under the impression that the 50mm f2.0 is good for "portraiture" as well???
Vitamin M is not say a lot lah, but save long enuff eventually will reach the required amt i guess...
So u mean the Leica 25mm is BETTER for portraiture shots? Cos i intend to take potrait-shots...
Another query, i've read somewhere that a "50mm lens is called the normal lens becos it gives the closest perspective as seen by the human eye..."
SO... given the x2 multiplier factor on our Oly bodies, is it the Leica's 25mm (x2 = 50mm) or the ZD's 50mm (x2 = 100mm) that is to be considered the "normal lens with closest perspective as seen by human eye..."??? :dunno:
Sorry if this has been asked before... AND i've used the Search function liao, din turn up anything.
Regards,
Eric
ya.... 50mm is so called the normal lens for portraiture shots.. so as u said... leica will give u 50mm. but the ZD 50mm can give u nice protrait shots also... just stand further a bit lo. :bsmilie:
Thanks!
So... is the "50mm normal lens" considered as BEFORE or AFTER taking into account the Oly bodies' x2 multiplier factor?
microcosm
Senior Member
Generally, I think the Sigma zooms will not be comparable to the ZD lenses. But the primes, might still be ok for general shooting. Whereas, the High Grades (mid range) ZD lenses has already out perform what the sensor can capture. That is looking forward. The glass quality between Sigma and ZD lenses are pretty far apart naturally.
All Zuiko Digital lenses are designed to give the standard 35mm full frame Field of view (FOV). ZD 50mm f2.0 is designed to be used as a 100mm equivalent FOV, not 50mm nor 75mm etc.
For example:
40-150mm = 80-300mm 3.5-4.5 :: 70-300mm 3.5-5.6
35-100mm = 70-200mm f2.0 :: 70-200mm f2.8
50mm = 100mm f2.0 :: 90mm f2.8
50-200mm = 100-400mm f2.8-3.5 :: 100-400mm f4.5-5.6
:: = equivalent existing ff camera lens
Hacker
Senior Member
The german FOTOMAGAZINE has performed some test to designed for digital ultra wide zoom lenses. The list now is as follows: (points are for Optical Quality / Mechanical Quality, maximum is 100/100)
1. Olympus Zuiko Digital 7-14mm f/4: 93/91
2. Tokina AT-X PRO 12-24mm f4 SD : 85/87
3. Olymous Zuiko Digital 11-22mm f/2.8-3.5: 85/86
4. Nikkor AF-S 12-24mm f/4 DX G IF-ED: 78/76
5. Sigma 10-20mm f/4-5.6 EX DC HSM: 69/80
6. Canon EF-S 10-22mm f/3.5-4.5 USM: 68/71
7. Tamron SP AF 11-18mm f/4.5-5.6 DI II LD-Asph.: 67/73
1. Olympus Zuiko Digital 7-14mm f/4: 93/91
2. Tokina AT-X PRO 12-24mm f4 SD : 85/87
3. Olymous Zuiko Digital 11-22mm f/2.8-3.5: 85/86
4. Nikkor AF-S 12-24mm f/4 DX G IF-ED: 78/76
5. Sigma 10-20mm f/4-5.6 EX DC HSM: 69/80
6. Canon EF-S 10-22mm f/3.5-4.5 USM: 68/71
7. Tamron SP AF 11-18mm f/4.5-5.6 DI II LD-Asph.: 67/73
nightpiper
Senior Member
i find the sigma's colour not very nice. in fact all sigmas i've seen had a little yellowish cast. aside from that, its a very useable lens. no doubt u can PS the colour to be close to the ZDs, but its still only close... too many variables in the lens & its quality, pretty impossible to match a 3rd party lens to match the original in post processing. :sweat:
hi yk, 2 things i like to add, hope u dun mind.
not quite exactly FF FOV for the ZDs, 35mm is 3:2 aspect ratio & 4:3 is well... 4:3
40-150mm FL mounted on 4:3 DSLR then will become 80-300mm. by itself, its still a 40-150mm lens. when i mount the 70-300mm Nikkor on my E1, i get 140-600mm... very different. :lovegrin:
comparing DSLR with DSLR:
40-150mm on 4:3 DSLR = 80-300mm whereas 70-300mm on the Nikon D80 is 105-450mm but if 40-150mm on the D80, it becomes 60-225mm.
40-150mm on 4:3 DSLR = 80-300mm whereas 70-300mm on the Canon 5D is 70-300mm but if 40-150mm is on the 5D, its still 40-150mm.
not quite the same if u ask me, the perspective of the lenses r also different. althou i'm an E1 user, but i still dun accept the Oly mentality, this is the reason why i enjoy using other lenses on my E1 rather than the ZDs. :bsmilie:
hi yk, 2 things i like to add, hope u dun mind.
not quite exactly FF FOV for the ZDs, 35mm is 3:2 aspect ratio & 4:3 is well... 4:3
40-150mm FL mounted on 4:3 DSLR then will become 80-300mm. by itself, its still a 40-150mm lens. when i mount the 70-300mm Nikkor on my E1, i get 140-600mm... very different. :lovegrin:
comparing DSLR with DSLR:
40-150mm on 4:3 DSLR = 80-300mm whereas 70-300mm on the Nikon D80 is 105-450mm but if 40-150mm on the D80, it becomes 60-225mm.
40-150mm on 4:3 DSLR = 80-300mm whereas 70-300mm on the Canon 5D is 70-300mm but if 40-150mm is on the 5D, its still 40-150mm.
not quite the same if u ask me, the perspective of the lenses r also different. althou i'm an E1 user, but i still dun accept the Oly mentality, this is the reason why i enjoy using other lenses on my E1 rather than the ZDs. :bsmilie:
Have you even tried out the Sigma 30mm? I bet you haven't. I used to dismiss all Sigma 4/3 lenses as well, only ZDs are worth buying to me but I just have to give the Sigma a go for the sake of the FOV and fast aperture.
Anyway, just got it this morning and had a few quick snaps with it.
In terms of built quality, it is extremely solid with nice textured coating. I like the AF/MF switch, it is very handy and the focus ring is very very nice, great rubber grip and sensitivity is just right. It is a little big and heavy for a prime lens when mounted on my E-500 though but it sure looks like it is built to last.
Comparing with my ZD 50mm F2.0, which I obviously like a lot, I will say that it is almost comparable in terms of sharpness at the same aperture but it does suffers from a little barrel distortion though, while the ZD 50mm is practically distortion free. I don't find that the contrast is lacking in the lens, images look very 'creamy and rounded' to me, if you know what I mean.
Its key advantage over the ZD is of course the F1.4~1.8 which means it is much more desirable when shooting in low light. Makes for a very bright view through the viewfinder. Anything <F2.0 needs some getting use to as the DOF is very low and sometimes you may not get the focus right. But when focus is good, the lens reward you with fantastic bokeh and sharpness of the subject matter. Maybe I should try focus bracketing for best results.
What is really impressive about the lens is the USM motor, which means that it is very quiet, unlike my noisy ZD 50mm and the focusing is very very quick, much faster than the ZD 50mm which hunts in low light (not really its fault, it is a macro lens with a large focusing range), it is even noticeably faster in AF than the already quick 14-54mm. Who says that a 4/3 body has slow focusing?
Ultimately, I am prepared to accept the relative optical weakness of the lens in comparison with the 50mm ZD. It is still way better than the standard Zuikos and most other prime lenses of other makes anyway and with an 'effective FOV' of 60mm + F1.4, it is probably the perfect natural light street lens for me, reminding me of the 50mm F1.8 Nikkor I used to shoot with on a FE2 body during the film days.
Until the Leica 25mm F1.4 appears, that is. :bsmilie:
Hacker
Senior Member
Tao, the slight barrel distortion (not soft like C & N versions) can be fixed quite easily using PTLens. US$15 and extremely good.
http://epaperpress.com/ptlens/index.html
Corrected sample here, note the left edge of the signage.
http://epaperpress.com/ptlens/index.html
Corrected sample here, note the left edge of the signage.
microcosm
Senior Member
The colours look a little too warm in this photo. (Nitpicking). But the sharpness is pretty impressive for a Sigma.
Taken using E-500 50mm F2.0 Macro lens. With built in flash only at 1 of the computer fair this year. I think this lens is good.
I was under the impression that the 50mm f2.0 is good for "portraiture" as well???
Vitamin M is not say a lot lah, but save long enuff eventually will reach the required amt i guess...
So u mean the Leica 25mm is BETTER for portraiture shots? Cos i intend to take potrait-shots...
Another query, i've read somewhere that a "50mm lens is called the normal lens becos it gives the closest perspective as seen by the human eye..."
SO... given the x2 multiplier factor on our Oly bodies, is it the Leica's 25mm (x2 = 50mm) or the ZD's 50mm (x2 = 100mm) that is to be considered the "normal lens with closest perspective as seen by human eye..."??? :dunno:
Sorry if this has been asked before... AND i've used the Search function liao, din turn up anything.
Regards,
Eric
Taken using E-500 50mm F2.0 Macro lens. With built in flash only at 1 of the computer fair this year. I think this lens is good.
Thanks for sharing mate.
But is it jus me or does anyone find that the pic is not exactly sharp? :dunno:
No offence, pls. Jus speaking out loud...
Hacker
Senior Member
Thanks for sharing mate.
But is it jus me or does anyone find that the pic is not exactly sharp? :dunno:
No offence, pls. Jus speaking out loud...
No details on the whites? Check the clothes and the MP3 player... :think:
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