NEW Sigma 24mm F1.8 Macro for 4/3 Mount

[tao]

Sigma 24mm F1.8 EX DG Aspherical Macro is released.... At last, a lens that can truely replace my 50mm F1.8 OM lens...

More here: http://www.photokina-show.com/0419/s...igmamacrolens/

[Hacker]

Don't forget the Leica 25mm 1.4.

http://panasonic.co.jp/pavc/global/l...ngth_lens.html

[say123]

Thre are more

Sigma APO 135-400mm F4.5-5.6 lens
Sigma APO 300-800mm HSM lens
Sigma 18-50mm F2.8 DC Macro lens


http://www.photokina-show.com/sigma/

[microcosm]

Originally Posted by tao Sigma 24mm F1.8 EX DG Aspherical Macro is released.... At last, a lens that can truely replace my 50mm F1.8 OM lens... More here: http://www.photokina-show.com/0419/s...igmamacrolens/

Sigmas are known to be soft wide open. I think the Leica/Pana would be a better choice.

Nothing beats the optics of ZD lenses though... but they are nothing in that focal length for primes. So the next best thing would be the Leica.

[NMSS_2]

hopefully we can get to see some full size samples taken by olympus bodies with 4/3 leica lenses vs zuiko lenses.

zuiko lenses doesnt seem to perform very well with pana body as tomcat's sample pic indicates.

[cire07]

Originally Posted by microcosm Sigmas are known to be soft wide open. I think the Leica/Pana would be a better choice. Nothing beats the optics of ZD lenses though... but they are nothing in that focal length for primes. So the next best thing would be the Leica.

I keep hearing PRIME lenses... What are those pls?

Used for what type of photography?

[say123]

Originally Posted by cire07 I keep hearing PRIME lenses... What are those pls? Used for what type of photography?

'prime' refers to a len that has no zoom. and with fix aperture.

so 50mm f2 is considered a prime
while a 14-35 f2 is not.

primes tend to be sharper as more elements of the lens are fixed compared to a zoom.

type of photography depends very much on the range. like 50mm f2 is good for portraits and macro.

[drewdam]

Originally Posted by say123 'prime' refers to a len that has no zoom. and with fix aperture. so 50mm f2 is considered a prime while a 14-35 f2 is not. primes tend to be sharper as more elements of the lens are fixed compared to a zoom. type of photography depends very much on the range. like 50mm f2 is good for portraits and macro.

hi may i ask when ur mention 50mm good for portrait shoot etc...is the 50mm refer to 25mmx 2 crop or 50mm which effective a 100mmon E-system?

[say123]

50mm x 2crop = 100m

for all e system

[microcosm]

Originally Posted by say123 type of photography depends very much on the range. like 50mm f2 is good for portraits and macro.

Again, depending on what you want to shoot for portraiture... sometimes having a sharp lens for portraiture may backfire badly for you... if the model is not a professional who really takes care of her skin, you may end up with pictures of her looking like she needs to check into skin centre... so think carefully when choosing lenses. But for products and stills and macro work... the 50mm Macro is an excellent lens!

[wrx_sti_22b]

Originally Posted by tao Sigma 24mm F1.8 EX DG Aspherical Macro is released.... At last, a lens that can truely replace my 50mm F1.8 OM lens... More here: http://www.photokina-show.com/0419/s...igmamacrolens/

How much would it cost?

[say123]

Originally Posted by wrx_sti_22b How much would it cost?

just a guess, between $750 to $1000.

[Hacker]

Called the agent and they will only bring in the Sigma when you actually make the order.

[Mikefellh]

Originally Posted by say123 'prime' refers to a len that has no zoom. and with fix aperture. so 50mm f2 is considered a prime while a 14-35 f2 is not.

Actually, primes have NOTHING to do with fixed apertures...the 50mm f/2 has can close down to f/22 so it's not fixed, but it is still a prime lens becuase it has only one focal length. Also the 14-35mm f/2 would also be fixed by your definition(which can also close down to f/22).

On the other hand, a lens that only has one aperture like a mirror lens would be fixed as you can't select another aperture:
http://www.photozone.de/3Technology/lenstec5.htm

A mirror lens could also be called a prime, but due to the technology of that lens being so different it's better to call it a mirror lens.

[cire07]

Originally Posted by say123 'prime' refers to a len that has no zoom. and with fix aperture. so 50mm f2 is considered a prime while a 14-35 f2 is not. primes tend to be sharper as more elements of the lens are fixed compared to a zoom. type of photography depends very much on the range. like 50mm f2 is good for portraits and macro.

Roger that...
Then hor, if i put the Prime 50mm f2 on the E-body... what kind of shooting mode should i select? Or it doesn't matter?

And like drewdam asked, on E-body the 50mm f2 will become 100mm... apparently the Four-Thirds website states that the closest focusing distance is 0.24m OR 9.45 inches...

Does that mean i must be AT LEAST 0.24m/9.45inches AWAY from the subject in order to get the subject into focus??? But at "100mm"... the subject will still be quite "BIG" in the frame rite?

EH... when buying lenses at the various shops, do they let u try the lens on ur own camera/their avail camera 1st before u commit? Just to have a feel of it...

Eric...

[Mikefellh]

Originally Posted by drewdam hi may i ask when ur mention 50mm good for portrait shoot etc...is the 50mm refer to 25mmx 2 crop or 50mm which effective a 100mmon E-system?

Originally Posted by say123 50mm x 2crop = 100m for all e system

One more time, the E-system does NOT have a crop factor, only those loser cameras like Canon and Nikon who use lenses designed for 35mm on smaller sized sensors.

On the E-system as the lenses are designed for the smaller sensor, they are covering the full frame and there is no crop...they are 100%.

There is a 2x multiplier factor though if you compare with 35mm film format.

As for the original question, peoeple say 50mm (35mm film equivalent) is good because it is the same focal length as the human eye, so that would be 25mm on the E-system. But a lot of portait shooters prefer 50mm (100mm equivalent).

[cire07]

OIC...

Crop factor vs multiplier factor...

I was getting it wrong the whole time!

Thanks!
Eric

[snapperkid]

hey mikefellh..you're tempting me to get the Sigma 24mm or panasonic 25mm!

[say123]

Originally Posted by Mikefellh Actually, primes have NOTHING to do with fixed apertures...the 50mm f/2 has can close down to f/22 so it's not fixed, but it is still a prime lens becuase it has only one focal length. Also the 14-35mm f/2 would also be fixed by your definition(which can also close down to f/22). On the other hand, a lens that only has one aperture like a mirror lens would be fixed as you can't select another aperture: http://www.photozone.de/3Technology/lenstec5.htm A mirror lens could also be called a prime, but due to the technology of that lens being so different it's better to call it a mirror lens.

thanks for point that out.

[say123]

Originally Posted by Mikefellh One more time, the E-system does NOT have a crop factor, only those loser cameras like Canon and Nikon who use lenses designed for 35mm on smaller sized sensors. On the E-system as the lenses are designed for the smaller sensor, they are covering the full frame and there is no crop...they are 100%. There is a 2x multiplier factor though if you compare with 35mm film format. As for the original question, peoeple say 50mm (35mm film equivalent) is good because it is the same focal length as the human eye, so that would be 25mm on the E-system. But a lot of portait shooters prefer 50mm (100mm equivalent).

thanks for pointing that out!
guess i would have to be more careful when posting..

i do know that the 4/3 systems are full frame.