This topic is in the 2014 archive. You can read it and like its posts here. It is read only.
Archive 2014Heavy lenses on Sony A7(r)?
p.1 #1Heavy lenses on Sony A7(r)?
Hi,
I use several Zeiss ZF lenses on my Sony A7 with a Novoflex F-mount adapter. Recently I've been thinking that some of the lenses (Zeiss 35/1.4, Zeiss 100/2) are quite heavy and started to worry a bit about the stress on the lens mount.
What is the view on this forum? Should I be worried about the stress on the mount generated by a 35/1.4 attached to the camera hanging on my shoulder? When lifting the camera to take pictures I usually support the lens with my right hand.
I use several Zeiss ZF lenses on my Sony A7 with a Novoflex F-mount adapter. Recently I've been thinking that some of the lenses (Zeiss 35/1.4, Zeiss 100/2) are quite heavy and started to worry a bit about the stress on the lens mount.
What is the view on this forum? Should I be worried about the stress on the mount generated by a 35/1.4 attached to the camera hanging on my shoulder? When lifting the camera to take pictures I usually support the lens with my right hand.
Jun 12, 2014 at 10:55 AM
p.1 #2Heavy lenses on Sony A7(r)?
I'm curious too, since the E mount uses plastic mount flanges. Was rather surprised when I got my NEX 6 to see that. Should be fine for most lenses, but not quite sure how heavier glass will fare long term.
Jun 12, 2014 at 11:05 AM
p.1 #3Heavy lenses on Sony A7(r)?
taz_k wrote:
Hi,
I use several Zeiss ZF lenses on my Sony A7 with a Novoflex F-mount adapter. Recently I've been thinking that some of the lenses (Zeiss 35/1.4, Zeiss 100/2) are quite heavy and started to worry a bit about the stress on the lens mount.
What is the view on this forum? Should I be worried about the stress on the mount generated by a 35/1.4 attached to the camera hanging on my shoulder? When lifting the camera to take pictures I usually support the lens with my right hand.
I personally would not even consider letting either of those lenses hang from the camera. I always carry my A7 by the lens with something that large.
You can purchase the Novoflex ASTAT and use the collar to attach the adapter to strap. The ASTAT is a wonderful product.
http://www.bhphotovideo.com/bnh/controller/home?O=&sku=758213&gclid=CjgKEAjwn-WcBRD61NHM-uqDrm4SJADrP4tPxRWsdkF_0A0hURz_jNEEM2fH00t31Nk0lqce-7a5bvD_BwE&Q=&is=REG&A=details
Hi,
I use several Zeiss ZF lenses on my Sony A7 with a Novoflex F-mount adapter. Recently I've been thinking that some of the lenses (Zeiss 35/1.4, Zeiss 100/2) are quite heavy and started to worry a bit about the stress on the lens mount.
What is the view on this forum? Should I be worried about the stress on the mount generated by a 35/1.4 attached to the camera hanging on my shoulder? When lifting the camera to take pictures I usually support the lens with my right hand.
I personally would not even consider letting either of those lenses hang from the camera. I always carry my A7 by the lens with something that large.
You can purchase the Novoflex ASTAT and use the collar to attach the adapter to strap. The ASTAT is a wonderful product.
http://www.bhphotovideo.com/bnh/controller/home?O=&sku=758213&gclid=CjgKEAjwn-WcBRD61NHM-uqDrm4SJADrP4tPxRWsdkF_0A0hURz_jNEEM2fH00t31Nk0lqce-7a5bvD_BwE&Q=&is=REG&A=details
Jun 12, 2014 at 11:40 AM
p.1 #4Heavy lenses on Sony A7(r)?
I use numerous heavy lenses with my 2xA7.No problem so far.Tiny NEXes 5N and the NEX7 with much longer mileage don't show any signs of mount wear out either.
Jun 12, 2014 at 11:46 AM
p.1 #5Heavy lenses on Sony A7(r)?
I think something like a 35/1.4 should be fine. I wouldn't go trying to hang a 70-200/4 off the front of it though
I think a basic rule of thumb is that its probably uncomfortable to shoot before it would hurt the mount, so in other words, if you need to support the lens with your left hand for stability, then I probably wouldn't try to hang it off the front.
Pretty much every brand of adapter has a version with a tripod foot so should be an easy fix, if the lens itself doesn't have a collar
I think a basic rule of thumb is that its probably uncomfortable to shoot before it would hurt the mount, so in other words, if you need to support the lens with your left hand for stability, then I probably wouldn't try to hang it off the front.
Pretty much every brand of adapter has a version with a tripod foot so should be an easy fix, if the lens itself doesn't have a collar
Jun 12, 2014 at 11:51 AM
p.1 #6Heavy lenses on Sony A7(r)?
Jman13 wrote:
I'm curious too, since the E mount uses plastic mount flanges. Was rather surprised when I got my NEX 6 to see that. Should be fine for most lenses, but not quite sure how heavier glass will fare long term.
I was quite surprised about the plastic flanges on A7/A7r too. Glad they put metal flanges for the A7s to support those heavy video lenses, so there's also hope that the next "higher end" e-mount camera could have also metal flanges.
I'm curious too, since the E mount uses plastic mount flanges. Was rather surprised when I got my NEX 6 to see that. Should be fine for most lenses, but not quite sure how heavier glass will fare long term.
I was quite surprised about the plastic flanges on A7/A7r too. Glad they put metal flanges for the A7s to support those heavy video lenses, so there's also hope that the next "higher end" e-mount camera could have also metal flanges.
Jun 12, 2014 at 11:56 AM
p.1 #7Heavy lenses on Sony A7(r)?
Sami Ruusunen wrote:
I was quite surprised about the plastic flanges on A7/A7r too. Glad they put metal flanges for the A7s to support those heavy video lenses, so there's also hope that the next "higher end" e-mount camera could have also metal flanges.
That is surprising, particularly for the A7r since Sony made a big deal about that one supporting heavier lenses when introduced due to it's use of more metal in the body construction.
Jman13 wrote
I'm curious too, since the E mount uses plastic mount flanges. Was rather surprised when I got my NEX 6 to see that. Should be fine for most lenses, but not quite sure how heavier glass will fare long term.That is surprising, particularly for the A7r since Sony made a big deal about that one supporting heavier lenses when introduced due to it's use of more metal in the body construction.
Jun 12, 2014 at 12:04 PM
p.1 #8Heavy lenses on Sony A7(r)?
Depends entirely on what kinds of plastics. Some parts of tanks and wings of planes are made out of plastics in high stress joints.
There are gun slides made in plastics and resins that can withstand extreme forces without warping.
There are gun slides made in plastics and resins that can withstand extreme forces without warping.
Jun 12, 2014 at 12:07 PM
p.1 #9Heavy lenses on Sony A7(r)?
The ZE35 will be slightly over 1000g with adapter. It weighs more than the FE 70-200 @ 840g.
It's purely my "feeling" but my concern is more moving the camera one handed from lens hanging to eye level and general movement with no lens support. That's a lot of weight, (admittedly, by nothing more than my own judgement) pulling on that mount.
It's purely my "feeling" but my concern is more moving the camera one handed from lens hanging to eye level and general movement with no lens support. That's a lot of weight, (admittedly, by nothing more than my own judgement) pulling on that mount.
Jun 12, 2014 at 12:10 PM
p.1 #10Heavy lenses on Sony A7(r)?
here is my 6000 which is smaller than the a7. I just hang it on my shoulder and so far it still attached 
http://www.sonyalphaimages.com/gallery/4/U4I1402453184.SEQ.0.jpg
http://zeissimages.com/gallery/4/med_U4I1402009353.SEQ.0.jpg
http://www.sonyalphaimages.com/gallery/4/U4I1402453184.SEQ.0.jpg
http://zeissimages.com/gallery/4/med_U4I1402009353.SEQ.0.jpg
Jun 12, 2014 at 12:16 PM
p.1 #11Heavy lenses on Sony A7(r)?
FlyPenFly wrote:
Depends entirely on what kinds of plastics. Some parts of tanks and wings of planes are made out of plastics in high stress joints.
There are gun slides made in plastics and resins that can withstand extreme forces without warping.
I guess everyone in this forum knows that plastic is used in many things but the plastic used in Sony mounts is not as rigid as the metal they use in their mounts. Thats the reason they are using full metal mounts in A7s, VG30, VG900, FS100 and other E-mount videocameras. I've used quite heavy video lenses on FS100 with confident and I have no doubt that they would crack plastic mount flanges pretty quickly.
Edited on Jun 12, 2014 at 01:16 PM · View previous versions
Depends entirely on what kinds of plastics. Some parts of tanks and wings of planes are made out of plastics in high stress joints.
There are gun slides made in plastics and resins that can withstand extreme forces without warping.
I guess everyone in this forum knows that plastic is used in many things but the plastic used in Sony mounts is not as rigid as the metal they use in their mounts. Thats the reason they are using full metal mounts in A7s, VG30, VG900, FS100 and other E-mount videocameras. I've used quite heavy video lenses on FS100 with confident and I have no doubt that they would crack plastic mount flanges pretty quickly.
Edited on Jun 12, 2014 at 01:16 PM · View previous versions
Jun 12, 2014 at 12:19 PM
p.1 #12Heavy lenses on Sony A7(r)?
Are there reports of cracking a7 mounts?
Jun 12, 2014 at 12:25 PM
p.1 #13Heavy lenses on Sony A7(r)?
I have used my A7r with my Leica R 280mm f4 Apo Telyt lens a fair number of times. I have not noticed any issues, but the A7r has a stronger mounting system than the A7 and I always carry and support the combination by the lens. Additionally, I tripod mount the lens using an Arca Swiss QR clamp attached to the lens on my Markins M20 head.
Rich
Rich
Jun 12, 2014 at 12:26 PM
p.1 #14Heavy lenses on Sony A7(r)?
Not sure about the plastic reference for a7R, what exactly is plastic?
http://www.lensrentals.com/blog/2014/01/the-a7r-teardown-a-look-inside-sonys-awesome-full-frame-mirrorless-camera
-Tim
Jun 12, 2014 at 01:28 PM
p.1 #15Heavy lenses on Sony A7(r)?
tsdevine wrote:
Not sure about the plastic reference for a7R, what exactly is plastic?
http://www.lensrentals.com/blog/2014/01/the-a7r-teardown-a-look-inside-sonys-awesome-full-frame-mirrorless-camera
-Tim
The flanges that keep the lens from dropping out.
Not sure about the plastic reference for a7R, what exactly is plastic?
http://www.lensrentals.com/blog/2014/01/the-a7r-teardown-a-look-inside-sonys-awesome-full-frame-mirrorless-camera
-Tim
The flanges that keep the lens from dropping out.
Jun 12, 2014 at 01:30 PM
p.1 #16Heavy lenses on Sony A7(r)?
Thanks, everything seemed like metal, it never occurred to me that there's plastic sandwitched in there.
-Tim
Jun 12, 2014 at 01:33 PM
p.1 #17Heavy lenses on Sony A7(r)?
I know I baby mine more than I probably need to, which is partially out of force of habit from the NEX-7, which wasn't particularly robust on the mount, and partially because I'd much rather spend money on lenses than pay to repair or replace the a7 if there's some adjustment in my habits that can mitigate that potential damage.
Jun 12, 2014 at 01:33 PM
p.1 #18Heavy lenses on Sony A7(r)?
FlyPenFly wrote:
Are there reports of cracking a7 mounts?
No, but now I"m going to have something else to obsessively worry over....thanks
Are there reports of cracking a7 mounts?
No, but now I"m going to have something else to obsessively worry over....thanks
Jun 12, 2014 at 01:42 PM
p.1 #19Heavy lenses on Sony A7(r)?
tsdevine wrote:
Thanks, everything seemed like metal, it never occurred to me that there's plastic sandwitched in there.
-Tim
It seems like it would be a critical part for wear/ stress and odd that everything else around it is metal. Perhaps it is a more durable plastic than we think.
Thanks, everything seemed like metal, it never occurred to me that there's plastic sandwitched in there.
-Tim
It seems like it would be a critical part for wear/ stress and odd that everything else around it is metal. Perhaps it is a more durable plastic than we think.
Jun 12, 2014 at 02:03 PM
p.1 #20Heavy lenses on Sony A7(r)?
I am not worried about my A7 because I rarely use very heavy lenses and even if I do I don't rest the full weight of the lens on the camera. However IF the incoming 28-135 pz lens is really optimized for pure video (which I doubt a bit) I am happy that they put bit more sturdiness to the mount of A7s because that's the camera I might get later this year.
One thing amazes me is the fact that with tad different material choices they could've made the A7/a7r even more sturdier than dslr. But I guess the small weight savings from here and there were worth it in larger scale and it looks much better in camera comparisons.
One thing amazes me is the fact that with tad different material choices they could've made the A7/a7r even more sturdier than dslr. But I guess the small weight savings from here and there were worth it in larger scale and it looks much better in camera comparisons.
Jun 12, 2014 at 02:04 PM