Anyone tried with speed booster (EFmount) with Rokinon 16mm T2.2 Lens for Canon EF Mount Cameras on GH4? The infinity focus problem?
1741341
I have. It works fine but due to the senor size, the field of view is less. Unlike Canon lens, there is no red dot on the Rokinon so you need to be careful. I have used several different Rokinon lens and they all work on the Metabones speed booster.
1879513
Chloe, I have the Canon T3i, and the ring works on my camera. Have you tried both sides of the ring? I also have the same efs 18-55mm lens, with the same size filter thread.
1730227
That's a good question! I've had issues with infinity focus with this item it's worth a shot though I think:)
653635
A full manual k mount lens has no machanical protrusions to adjust your aperture. These I feel are the safe ones the adapter is made for. I would look at the back of an EF mount lens and measure from the camera mirror when off you should be able to lift to a position that is far out as it will go. If you like it, go for it. I have a ID MK4 and will only use EF mounts even with the 1.3 sensor. Just looking at the lenses that are full manual film lenses, they look like they will work. Any other i won't comment anymore for, to many protrusions sticking to the mirror box. My manual lenses all work great with the adapter.
404312
Yes. Just make sure you order the Rokinon CV16M-C 16mm T2.2 Cine Wide Angle Lens for Canon EF Mount Cameras.
2124235
I'd recommend you get a longer mounting plate. The Arca-Swiss style plate the comes with the Opteka GH1 is only 75mm long. From my own experience with a Canon 70-200mm f/2.8 lens attached to a 5DMrkII body and battery grip, I had to go to a 90mm plate to achieve the proper gimbal balance. The hefty weight of the body with grip acts like a counter balance and requires additional forward positioning to properly balance the lens and camera.
2015402
I am no expert on this. That said, I have used lower ISO speeds trying to get lower noise in the image. I have an EOS 10D. I use a 28-135 Canon zoom lens, since my main reason for buying this flash is to get close-up images of small things.
992402
it will not stay on focus ring- so I guess it for zoom only. Good question- if people can get it to stay on the focus ring they must have a wide ring. wont stay on any my canon lenses.
1503543
I'm using this with canon ef 85mm f/1.8 USM and canon ef 35mm f/2 works fine even with auto focus just a little bit slow on focusing so mostly I use manual focus also worked with sigma 18-250mm
296068
I returned mine because of the focus ring and other issues. Bought a Canon lens instead. Decided against a fisheye lens. If it was me I would consider a Rokinon HD8M-C if you can return the Opteka for refund.
57702
I've used it on my T3i, and I don't think canon would have changed their ef mount standards, so yes it should work. I have not tried it with EF-S lenses but the telltale white dot is on there.
1730226
Unfortunately, the focus to infinity is not available: 2.5 - 3 meters (8-10 feet) is maximum.I use this converter with Nikon D5100 and with the specially adjusted, the old Russian lens Jupiter-9.http://cameras.alfredklomp.com/jupiter9/This is a very specific lens.https://www.facebook.com/photo.php?fbid=10202107820475164&set;=a.3021099764648.2131658.1177290511&type;=1
2207206
It just so happens that yesterday I tried the 2.0 on my 7D Mark II with the new 100-400 II lens and it lost its AF function. It works fine with the 1.4 extender, though.
1730228
Sorry, I have not used the lens or camera you ask about. The manufacturer should have info on infinity focus on their site. Good luck.
2105362
Sorry to take so long to respond. I've only used this lens for video once, and it was on a very sturdy tripod. A lens this short would probably cause little problems with shaky images in video. If you already have the 14-to-140mm lens that the GH2 is usually shipped with, you already have 20mm focal length covered. The only advantage to this lens is the larger aperture, which will allow for faster shutter speeds in still mode. If you are shooting video indoors in available light, this lens might be worth the investment. I shoot a lot of video and use a top quality tripod with an expensive video head for steady shooting and smooth panning. The GH2 100-to-300mm lens with the GH2's built in optical teleconverter equates to a 1540mm telephoto lens in 35mm film! At that length any vibration at all is magnified. But anyway, I didn't buy the 20mm for use in video mode. I'll do some testing and give you an update.
2096980
Not unless you only want to use it at close distances only. The flange distance is 29mm for the XL1 and 44mm for the EF mount, a 15mm difference. The maximum focal length of the XL1 is 88mm, so the lowest magnification ratio that you could shoot at is 15/88 = 0.17x. And that assumes an adapter of 0 length. So not only would you lose infinity focus, you wouldn't even be able to focus at moderate distances. Even if you wanted to the adapters are pretty bad.
964780
Your body will take an EF lens according to dpreview.com, so the lens will work. You threw me off a little there, there is no such thing, to my knowledge as a FF body though I think you mean a full frame sensor.