Nov 1 Update from Birger

Stephen Mick said:
Actually, you are wrong.

EF-S lenses WILL fit on EF cameras (at least my Tokina 11-16 and 12-24 mount on my 5DII). The problem is sensor coverage and vignetting. Again, because the EF-S lenses are designed to only cover APS-C sensors, the projected image from the lens shows heavy vignetting. But the lens itself mounts perfectly fine. So, if the AF-100 sensor is smaller (which it is) than the APS-C sensor, the EF-S lenses should cover it perfectly with the Birger mount.
Click to expand...
Not all of them. EF-S wont fit the 1D-models.
 
Stephen Mick said:
Actually, you are wrong.

EF-S lenses WILL fit on EF cameras (at least my Tokina 11-16 and 12-24 mount on my 5DII). The problem is sensor coverage and vignetting. Again, because the EF-S lenses are designed to only cover APS-C sensors, the projected image from the lens shows heavy vignetting. But the lens itself mounts perfectly fine. So, if the AF-100 sensor is smaller (which it is) than the APS-C sensor, the EF-S lenses should cover it perfectly with the Birger mount.
Click to expand...

Actually, you are wrong.

Boilerplate from EF-S lens instruction manuals.

As of February 2010, only the EOS 7D, EOS 50D, ......., EOS Digital Rebel/300D Digital are compatible with EF-S lensess
Click to expand...
Notably absent - 5D's and 1D's of all shapes and sizes.

Tokina does not make an EF-S mount lens. They make a lens for the APS-C sensor and stick it on an EF mount so you can use it with the full frame cameras, with the vignetting as has been noted. EF-S lenses will not mount on an EF mount camera. Don't believe me? Take an actual EF-S lense (i.e. a lens that is called EF-S something, or states it has an EF-S mount) and try and mount it. Without physically modifying the lens, you cannot do it.
 
I think the truth is somewhere inbetween. Stephen has EF-S-compatible lenses from Tokina and can fit them, but 4100xpb and Kimster are saying that Canon-brand EF-s lenses actually won't mount at all. I've been googling around and it appears that Canon did make some changes to the mount to protect the 1D and 5D from having EF-S lenses mounted on them. Not only because they won't cover the chip so you'll get vignetting, but also apparently the mirror can actually smack the rear of the lens when it goes to flip up.

This of course would not be an issue with an AF100/Birger combination, because there's no mirror. So while any EOS lens can be mounted on EF-S-mount cameras, apparently EF-S lenses cannot be mounted on all EOS-mount cameras. The solution would seem to be simple; Birger should design their mount so that it can natively take EF-S lenses, and then it can use all Canon glass.
 
Good news! I just confirmed it with Erik at Birger; the mount will accept EF-S lenses.
 
Well, that's interesting to find out. I never tried to mount my EF-S 17-55 f2.8 on my 5D, I didn't see the need. But I did mount the Tokina 11-16 (for APS-C) and at 15 and 16mm it looked fine and mounted perfectly.

All that really matters to me now is to know that they'll all work on the Birger adapter. That is wicked-good news.
 
Is there a particular reason why Birger's website doesn't really contain any actual information on the products that they make and sell?

It looks like they forgot about the site halfway through making it. The "About Us" page only says "[ENTER COMPANY INFORMATION HERE]".

??
 
Nice to see Eric is working on the mount for this camera. I spent some time with Eric in his studio with my Red One and Canon EF L glass helping in a very (did I say very) small way with the Red One Birger mount. Eric is a fantastic engineer and builds a first class product. This is one more feather in the cap for the AF100.

I would not call Birger site Junk, they are engineers and produce great product. To spend the time and money to make a fancy site for marketing, would that make the difference in you buying the mount?
 
Glad to hear they will take the EF-S lenses - that will open up a great set of wide and normal lenses for this cam.
 
I would say yes. Marketing is very important! If I can't see their product on their webpage, I'm not going to buy it.
If their webpage doesn't contain the relevant information about the company, telling me who they are and what they do, I'm not going to trust them.
Webpages are a vital part of a company's face - the image of themselves that they share with the world.
Right now, Birger's face is severely lacking in completeness.
 
Eric seems to be a very gracious (and of course, extremely knowledgeable) person who is is err... focused on getting the adapter right, and adjusting to the different market the AF100 represents vs the RED.

Perhaps the site is of the form follows function school of thought- it works, so it serves its purpose fine.
That said, who knows if they might be interested in an updated site from a design-savvy user?
With some fine photos capturing the beauty of a intelligently designed, finely machined piece of equipment.
 
I know this may sound like a silly question, but how does the adapter attach to the camera? Does it just "Click" in like a lens? Or does the adapter use screws etc? How does the Birger RED adapter go on? Click? Quick? Someone told me if you have a AF-100 and a canon lens, in order to use the adapter and the lens it's like putting two lenses on. Click, click?

Does that click? Am I clicken!

Thanks for the click-date! (up-date). Oh, maybe I am just getting excited to use my 7D as a sweet still camera. Click click click....

b.p.
 
impressive creations said:
I know this may sound like a silly question, but how does the adapter attach to the camera? Does it just "Click" in like a lens? Or does the adapter use screws etc?
Click to expand...
Yes, it has a M4/3 mount on one side and a Canon EF mount on the other, at least this is how every other M4/3 adapter works. I would be very surprised if it is any different with the Birger mount, and can't imagine any reason why it would be.
 
Does anybody know if the RED Birger mount let you adjust the aperture cine-style, or does it use steps? If so does it use 1/2 stop increments or 1/3 stop?
Hopefully the new Birger will give us cine-style!

Also, does anybody know the range of the old remote, or even better, what range we can except with the new one?
 
I'm really starting to get nervous about this mount. Hopefully they will give us some sort of accurate delivery timetable soon- if they can't get it out on time I'm going to have to buy some of those fast olympus zooms in lieu of using my existing Canon "L" zooms.
 
It surprises me Birger is the only company working on this.

Maybe Tokina itself or other third-party company will make an adapter?
 
Actually it is weird Panasonic themselves aren´t making one. I know they have their own lens-line-up. But it is also not the best line-up yet. And since they market this as a cine-cam they are aware that most people use differnet primes and not m4/3 - photo lenses.
 
You must log in or register to reply here.
Back
Top