Let's talk glass: Lenses for the AF100!

Its a sigma 24mm f1.8 (nikon)- has a manual aperture. Surprisingly, its really sharp wide open, I use it on my 5D and the GH1.
 
aalleexx said:
how about the tokina 11-16mm it would become a 30mm with the crop factor?
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It wouldn't "become" a 30mm anything. It would be equivalent to about a 13-19 zoom on a 35mm cinema camera.

If you want to compare against full frame SLR, then yes it's going to be a tighter field of view.
 
I highly recommend anyone concerned, even in the slightest, about crop factor to take the camera they are currently shooting on along with any lenses they may have to some place with a GH-1 and a few lenses (be it a camera store, a rental house, a friend's house, etc.).

Take a look at how things actually look through the camera. There is much time and much worry spent multiplying and divining a "relative" factor which...really...doesn't mean much in and of itself.

Other than that, just know what qualifies wide, normal, and telephoto for the 4/3 system. Much less worry, much more time being happy behind the camera.
 
well my question was really on how different would the tokina 11mm look on the af100 compared to how it looks on the 7d
 
aalleexx said:
well my question was really on how different would the tokina 11mm look on the af100 compared to how it looks on the 7d
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The answer is: it'll look very similar. It'll be a little bit longer; as Hunter said, the crop factor is 1.18 between the 7D and the AF100. So like I said, it isn't going to be anywhere near like 30mm! It'll be more like 13mm-19mm.
 
Am I the only who thinks that 5D shooters are a bit obnoxious with the FOV conversion between full frame and u43?

Yes. Your current lenses will have a narrower FOV on u43. Deal with it.

If you've been shooting with 7D, T2i, 60D, GH1 or 99% of digital SLRs out there, the difference going to u43 is negligible: 1.25x. Just zoom out a bit, choose a lens a smidge wider, like 28mm instead of 35mm or take a few steps back. If you need a super wide lens, get the Panny 7-14... that's gonna look even wider than a 10-20mm on APS-C.

Are GH1 people trolling 5D forums whining about how their lenses look too wide on the 5D? That they can't find a 100mm 1.2 to replace their 50mm 1.2? See... it works both ways!

Sorry... it's just that every thread about the AF100 seems to always spiral down towards crop factor.

If at least the questions were formulated like this, I wouldn't find it as aggravating:

I love my 24-70 2.8 on my 5D. Is there a zoom with a similar range available for u43? (Yes there is).

Sorry for the rant. :-)

-X
 
Hey Barry,

Where does 1.18x come from?

If Canon APS-C is 1.6x full frame and u43 is 2.0x, isnt 2.0/1.6 = 1.25?

-X
 
RED PRO 18-85mm $9,975. Is this the best low cost cine style zoom lens?

I find it hard to beleive that Panasonic in conjunction with another lens manufacturer like leica, canon, fuji, etc cannot introduce a cine zoom lens at a moderate price.
 
xbourque said:
Am I the only who thinks that 5D shooters are a bit obnoxious with the FOV conversion between full frame and u43?

Yes. Your current lenses will have a narrower FOV on u43. Deal with it.

If you've been shooting with 7D, T2i, 60D, GH1 or 99% of digital SLRs out there, the difference going to u43 is negligible: 1.25x. Just zoom out a bit, choose a lens a smidge wider, like 28mm instead of 35mm or take a few steps back. If you need a super wide lens, get the Panny 7-14... that's gonna look even wider than a 10-20mm on APS-C.

Are GH1 people trolling 5D forums whining about how their lenses look too wide on the 5D? That they can't find a 100mm 1.2 to replace their 50mm 1.2? See... it works both ways!

Sorry... it's just that every thread about the AF100 seems to always spiral down towards crop factor.

If at least the questions were formulated like this, I wouldn't find it as aggravating:

I love my 24-70 2.8 on my 5D. Is there a zoom with a similar range available for u43? (Yes there is).

Sorry for the rant. :-)

-X
Click to expand...

Seriously

I shot stills for years on 35mm and never took off the 55mm f/1.4 the camera came with, why, it never accrued to me that i should and thank god i didn't know any better or i don't think i would have had much fun and probably wouldn't have persuade videography in college.

However i can see how folks coming from video cameras with crazy crop factors could get all tangled up in this stuff. i mean when shooting with a video camera with a non removable zoom do we get caught up in what our focal length is? i never did. If i lean over to my second shooter and say "hey, lets go to 5mm" he would say "do what?"
So i say "Give me a wide" and its like magic and he gives me a wide.

Now that the lenses are interchangeable and the sensors are between the 5D which is FF 35mm and the 1D and the 7D/t2i which are smaller and the GH1 which is close to 35 motion picture it tough to picture what your going to get with X lens. Frankly it sounds like a lot of folks somehow think the Focal length on a Prime lens changes as you move it from camera to camera.

so, if the numbers are getting in the way.... lets go back to the way we did it before we all got so smart.

on a micro 4/3 camera (AF100/GH1)

super wide is 7mm
wide is 14mm
normal is 20-25mm
a medium close is 40-50mm (AKA a portrait lens)
a close up is like 100-200
and an extreme close up would be lie 300+

And this is just my $.02
if anyone wants to adjust my terminology or numbers go for it.

if got an olympus 9-18 which i almost always shoot at 9mm
a panasonic 20mm f/1.7 which is totally bad a$$
a minolta 50 f/1.4 which i shoot closeups with
the kit lens which i shoot everything with were there is enough light and i need a deeper DOF.

Also i think a good thing to remember is that a Normal lens is said to be normal because if you open the other eye, the object in frame, and the same object in your unobstructed eye are relatively the same size.

it is a good starting point to get a feel for this sort of thing

End of rant
 
Bucknfl said:
RED PRO 18-85mm $9,975. Is this the best low cost cine style zoom lens?

I find it hard to beleive that Panasonic in conjunction with another lens manufacturer like leica, canon, fuji, etc cannot introduce a cine zoom lens at a moderate price.
Click to expand...

http://www.bhphotovideo.com/bnh/controller/home?O=WishList.jsp&A=details&Q=&sku=715071&is=REG

715071.jpg
 
The concept of cine zoom and moderate price don't mix.
People buy a $800 camera and want cinema quality not optical but mechanical performance as well. They soon realise that such a zoom costs in excess of $25000.
The same happened to many Red One purchasers. A cheap entry point but lenses and accessories for serious, productive work cost three times the camera.
Same with the DSLR rigs. A cheap entry point with the GH1, 550D... but to make them properly work in a production environment, it will cost much more.
Good cine style lenses are not cheap to make, mechanically they are different, low production numbers.
Manufacturers are making now mass produced very cheap lenses, and apply the distortion, CA corrrections in software, firmware.
 
Ryan Patrick O'Hara said:
I've always disliked the red zooms and proprimes... this really just supports that fishy feeling I had about the origin of the red lens series. EXACTLY like the red zooms.
Click to expand...

Really? I've never had the opportunity to use a set myself, but I have heard really good things about them (cost aside), even from rather independent specialists and technicians...

Edit: The DigiOptical zooms are rehoused Sigma lenses. Presumably these. They are supposed to be "decent optically" but rather poor mechanically (go figure).

http://www.sigmaphoto.com/shop/18-50mm-f28-ex-dc-macro-sigma

http://www.sigmaphoto.com/shop/50-150mm-f28-ex-dc-apo-hsm-ii-sigma
 
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