Question about using the aperture on the Af100

Bubblegummonster

Bubblegummonster

Active member
Hi everyone.

I have a question about using the aperture with Af100. From the information I've learned from this forum. Nikon glass allows you adjust the aperture manually. Canon doesn't yet intill the birger mount. Panasonic Lumix lenses talk to the camera directly...I think?

How do you deal with clouds and other uncontrollable light sources. Does the Af100 allow you to set auto aperture using the Lumix lenses? And if so will this work with the Birger mount. How do people with Nikon glass deal with this?


Thanks in advance


Peter
 
Manual is manual, there is no way around it. All 3rd party glass on the AF100 is manual except, maybe, some Olympus and Leica 4/3 and M4/3 lenses, but their automatic performance on the AF100 can vary. This official compatibility matrix can help. As far as I understand, the Birger adapter won't permit automatic (in-camera) lens control, just lens control with a remote wired or wireless controller. Hope this helps.
 
Nikon has more lenses with an iris ring than canon. The adaptimax nikon plus will allow you to adjust the iris on nikon lenses without a iris ring on the lense. Neither canon nor nikon communicate with the af 100.
 
Bubblegummonster said:
Hi everyone.

I have a question about using the aperture with Af100. From the information I've learned from this forum. Nikon glass allows you adjust the aperture manually. Canon doesn't yet intill the birger mount. Panasonic Lumix lenses talk to the camera directly...I think?

How do you deal with clouds and other uncontrollable light sources. Does the Af100 allow you to set auto aperture using the Lumix lenses? And if so will this work with the Birger mount. How do people with Nikon glass deal with this?

Thanks in advance

Peter
Click to expand...

That's right. The Lumix lenses will communicate with the camera. Most other lenses will all be manual, even if they're designed to communicate with a camera. The Lumix lenses should allow you to manually adjust the aperture via a setting on the camera body. I have noticed that it doesn't let me open it up fully in some instances (the 14-42mm Lumic lens). It has sat at F5.6 when I wanted it to go to F3.5 and I'm not sure why. There is the 14-140 Lumix lens that is apparently optimised for the AF100/video/AF etc, but I haven't used it.
 
maxusa said:
As far as I understand, the Birger adapter won't permit automatic (in-camera) lens control, just lens control with a remote wired or wireless controller.
Click to expand...
This is not correct. The prototype works that way, but as far as I understand it, the final shipping adapter is supposed to allow full in-camera manual and automatic control.
 
evanrm said:
...I have noticed that it doesn't let me open it up fully in some instances (the 14-42mm Lumic lens). It has sat at F5.6 when I wanted it to go to F3.5 and I'm not sure why...
Click to expand...

with your auto lens, your aperture range is 3.5-5.6; meaning at max zoom of 42, your aperture will also only open to 5.6 and at widest of 14mm you are able to open to 3.5.
 
Thanks for all your replies.

I was thinking of buying the 14-35 olympus lens but reading some of the threads on here about the aperture jumping slightly when zooming I think I'll wait in till the Birger mount is out and stick with the canon lenses.
 
Barry, thanks for chiming in with the remark on Birger. I inadvertently got myself into spreading rumors based on a pre-production video review of a half-baked prototype. The grand idea of the full in-camera control sounds noble. However, even Panasonic themselves cannot make every native M43 lens integrate fully on the AF100. Do you think the full in-camera integration with 3rd party glass by a 3rd party is still viable?
 
I can't say how viable it is, because I'm not in that end of the business, but I can say this -- Birger says that their existing Red One mount works with, I think, 99 out of the 101 Canon lenses he tested it with (I don't remember the exact number). So Birger is quite confident that they have a very good handle on compatibility and protocol with Canon lenses.

Now he just has to make sure that his mount works with the camera. So there's really only one point of variability. He already has proven technology from mount to lens, so now he has to prove mount-to-camera. If he gets that right, then ... yeah, it should be pretty widely compatible.
 
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