Zeiss 16-70, when I zoom the lens with the EVF the EVF swings to dim or bright

Started 5 months ago | Discussions
Jerry R
Veteran MemberPosts: 6,845
Like?
Zeiss 16-70, when I zoom the lens with the EVF the EVF swings to dim or bright
5 months ago

Zeiss 16-70, when I zoom the lens with the EVF the EVF swings to dim or bright and then settles down. Is this normal? Have not checked to see if the same happens with the LCD.

Thanks,

Jerry

-- hide signature --

Canon A2E, Sony R1, NEX C3 & 5R + Zeiss 24mm & 16-70 E Lenses, Nikon D5100 + 35mm, 85mm & Sigma 150mm lenses, Nikon V1 + 10-30 & 30-110 lenses.

Nikon 1 V1 Nikon D5100
If you believe there are incorrect tags, please send us this post using our feedback form.
unknown member
(unknown member)
Like?
Re: Zeiss 16-70, when I zoom the lens with the EVF the EVF swings to dim or bright
In reply to Jerry R, 5 months ago

Jerry R wrote:

Zeiss 16-70, when I zoom the lens with the EVF the EVF swings to dim or bright and then settles down. Is this normal? Have not checked to see if the same happens with the LCD.

Thanks,

Jerry

-- hide signature --

Canon A2E, Sony R1, NEX C3 & 5R + Zeiss 24mm & 16-70 E Lenses, Nikon D5100 + 35mm, 85mm & Sigma 150mm lenses, Nikon V1 + 10-30 & 30-110 lenses.

Is  this happening when zooming with F4, or it is happening also when zooming with F8 aperture ?

 5nex7's gear list:5nex7's gear list
Sony Alpha NEX-5N Sony Alpha NEX-7 Sony Alpha NEX-6 Sony a6000 Sony E 18-200mm F3.5-6.3 OSS +54 more
Reply   Reply with quote   Complain
EinsteinsGhost
Forum ProPosts: 11,522Gear list
Like?
Re: Zeiss 16-70, when I zoom the lens with the EVF the EVF swings to dim or bright
In reply to 5nex7, 5 months ago

Jerry R wrote:

Zeiss 16-70, when I zoom the lens with the EVF the EVF swings to dim or bright and then settles down. Is this normal? Have not checked to see if the same happens with the LCD.

Thanks,

Jerry

-- hide signature --

Canon A2E, Sony R1, NEX C3 & 5R + Zeiss 24mm & 16-70 E Lenses, Nikon D5100 + 35mm, 85mm & Sigma 150mm lenses, Nikon V1 + 10-30 & 30-110 lenses.

Is  this happening when zooming with F4, or it is happening also when zooming with F8 aperture ?

Do you have Settings Effects on, or off?
What metering option?
Is the scene a mix of bright areas with dark areas? (For example, if most of the scene is "dark" but it flips to most of the scene is "bright" as you zoom.

 EinsteinsGhost's gear list:EinsteinsGhost's gear list
Sony Cyber-shot DSC-F828 Sony SLT-A55 Sony Alpha NEX-6 Sigma 18-250mm F3.5-6.3 DC OS HSM Sony 135mm F2.8 (T4.5) STF +12 more
Reply   Reply with quote   Complain
unknown member
(unknown member)
Like?
Re: Zeiss 16-70, when I zoom the lens with the EVF the EVF swings to dim or bright
In reply to EinsteinsGhost, 5 months ago

EinsteinsGhost wrote:

Jerry R wrote:

Zeiss 16-70, when I zoom the lens with the EVF the EVF swings to dim or bright and then settles down. Is this normal? Have not checked to see if the same happens with the LCD.

Thanks,

Jerry

-- hide signature --

Canon A2E, Sony R1, NEX C3 & 5R + Zeiss 24mm & 16-70 E Lenses, Nikon D5100 + 35mm, 85mm & Sigma 150mm lenses, Nikon V1 + 10-30 & 30-110 lenses.

Is this happening when zooming with F4, or it is happening also when zooming with F8 aperture ?

Do you have Settings Effects on, or off?
What metering option?
Is the scene a mix of bright areas with dark areas? (For example, if most of the scene is "dark" but it flips to most of the scene is "bright" as you zoom.

Is it happening while keeping the shutter half pressed ?

The iris opens / closes when you zoom in / out, for keeping the same F stop, so maybe you have a lag in this aperture adjustment. If you are at the F4 margin this problem could be amplified.

Also could be a problem of continuous focus adjustment while zooming. Changing settings like AF-C, AF-S, Lock-On AF, AEL with shutter, Focus with shutter, Pre AF, could point to the problem.

I tried to replicate your problem with A6000... I can not make it happen.. but I don't have the SEL1670z, maybe it is a lens dependent issue.

 5nex7's gear list:5nex7's gear list
Sony Alpha NEX-5N Sony Alpha NEX-7 Sony Alpha NEX-6 Sony a6000 Sony E 18-200mm F3.5-6.3 OSS +54 more
Reply   Reply with quote   Complain
Jerry R
Veteran MemberPosts: 6,845
Like?
5nex7, it was happening in "A mode at f/5.6 & f/8 and "P mode". I'm not
In reply to 5nex7, 5 months ago

5nex7, it was happening in "A mode at f/5.6 & f/8 and "P mode". I'm not about the other f stops.

-- hide signature --

Canon A2E, Sony R1, NEX C3 & 5R + Zeiss 24mm & 16-70 E Lenses, Nikon D5100 + 35mm, 85mm & Sigma 150mm lenses, Nikon V1 + 10-30 & 30-110 lenses.

Reply   Reply with quote   Complain
unknown member
(unknown member)
Like?
Re: 5nex7, it was happening in "A mode at f/5.6 & f/8 and "P mode". I'm not
In reply to Jerry R, 5 months ago

Jerry R wrote:

5nex7, it was happening in "A mode at f/5.6 & f/8 and "P mode". I'm not about the other f stops.

-- hide signature --

Canon A2E, Sony R1, NEX C3 & 5R + Zeiss 24mm & 16-70 E Lenses, Nikon D5100 + 35mm, 85mm & Sigma 150mm lenses, Nikon V1 + 10-30 & 30-110 lenses.

Both A and P mode use fixed F stops, so no iris variations with exposure variations, the iris will not change when you are pointing to different lights / shadows, so no jumps in image brightness, but still you have iris variation when you change the focal length, at the same F stop, so, maybe iris by focal length adjustment lag... if it is so, I think that you can detect this lag if you look at the iris while zooming the lens.. maybe..

Like I said in the other post, I tried to replicate this behavior with A6000 and SEL1855 and I couldn't.. could be a lens problem ? I don't know..

 5nex7's gear list:5nex7's gear list
Sony Alpha NEX-5N Sony Alpha NEX-7 Sony Alpha NEX-6 Sony a6000 Sony E 18-200mm F3.5-6.3 OSS +54 more
Reply   Reply with quote   Complain
Jerry R
Veteran MemberPosts: 6,845
Like?
I am able to reproduce the fluctuations in both spot and multi metering modes. However,
In reply to Jerry R, 5 months ago

I am able to reproduce the fluctuations in both spot and multi metering modes. However, if I half press the shutter to hold focus it does not happen.

-- hide signature --

Canon A2E, Sony R1, NEX C3 & 5R + Zeiss 24mm & 16-70 E Lenses, Nikon D5100 + 35mm, 85mm & Sigma 150mm lenses, Nikon V1 + 10-30 & 30-110 lenses.

Reply   Reply with quote   Complain
unknown member
(unknown member)
Like?
Re: I am able to reproduce the fluctuations in both spot and multi metering modes. However,
In reply to Jerry R, 5 months ago

Jerry R wrote:

I am able to reproduce the fluctuations in both spot and multi metering modes. However, if I half press the shutter to hold focus it does not happen.

-- hide signature --

Canon A2E, Sony R1, NEX C3 & 5R + Zeiss 24mm & 16-70 E Lenses, Nikon D5100 + 35mm, 85mm & Sigma 150mm lenses, Nikon V1 + 10-30 & 30-110 lenses.

Try to disable Pre AF.. see if still happens... I assumed all the time that it is about A6000...

 5nex7's gear list:5nex7's gear list
Sony Alpha NEX-5N Sony Alpha NEX-7 Sony Alpha NEX-6 Sony a6000 Sony E 18-200mm F3.5-6.3 OSS +54 more
Reply   Reply with quote   Complain
dquangt
Contributing MemberPosts: 995
Like?
Re: I am able to reproduce the fluctuations in both spot and multi metering modes. However,
In reply to Jerry R, 5 months ago

Jerry R wrote:

I am able to reproduce the fluctuations in both spot and multi metering modes. However, if I half press the shutter to hold focus it does not happen.

-- hide signature --

Canon A2E, Sony R1, NEX C3 & 5R + Zeiss 24mm & 16-70 E Lenses, Nikon D5100 + 35mm, 85mm & Sigma 150mm lenses, Nikon V1 + 10-30 & 30-110 lenses.

seems like the camera is adjusting the exposure based on what is in the scene as you zoom in and out. it doesn't happen when you half press the shutter because the exposure is locked with half shutter. doesn't seem abnormal to me.

Reply   Reply with quote   Complain
unknown member
(unknown member)
Like?
Re: I am able to reproduce the fluctuations in both spot and multi metering modes. However,
In reply to 5nex7, 5 months ago

5nex7 wrote:

Jerry R wrote:

I am able to reproduce the fluctuations in both spot and multi metering modes. However, if I half press the shutter to hold focus it does not happen.

-- hide signature --

Canon A2E, Sony R1, NEX C3 & 5R + Zeiss 24mm & 16-70 E Lenses, Nikon D5100 + 35mm, 85mm & Sigma 150mm lenses, Nikon V1 + 10-30 & 30-110 lenses.

Try to disable Pre AF.. see if still happens... I assumed all the time that it is about A6000...

... I tried again, with SEL18200 on A6000... if you are zooming very fast it may be a 0.1-0.2 seconds brighter or darker view in the EVF... I would not bother about this... never even noticed.

Maybe you should try this with another lens ?

 5nex7's gear list:5nex7's gear list
Sony Alpha NEX-5N Sony Alpha NEX-7 Sony Alpha NEX-6 Sony a6000 Sony E 18-200mm F3.5-6.3 OSS +54 more
Reply   Reply with quote   Complain
Lucas_
Senior MemberPosts: 2,943Gear list
Like?
Re: I am able to reproduce the fluctuations in both spot and multi metering modes. However,
In reply to dquangt, 5 months ago

dquangt wrote:

Jerry R wrote:

I am able to reproduce the fluctuations in both spot and multi metering modes. However, if I half press the shutter to hold focus it does not happen.

-- hide signature --

Canon A2E, Sony R1, NEX C3 & 5R + Zeiss 24mm & 16-70 E Lenses, Nikon D5100 + 35mm, 85mm & Sigma 150mm lenses, Nikon V1 + 10-30 & 30-110 lenses.

seems like the camera is adjusting the exposure based on what is in the scene as you zoom in and out. it doesn't happen when you half press the shutter because the exposure is locked with half shutter. doesn't seem abnormal to me.

I guess you're right. I have the A6000 and noticed that light fluctuation. When I disable the exposure lock with shutter half-press, the fluctuation occurs untill the shot is taken. Anyway that happens only while the framed scene light varies due to zooming, camera panning, etc. IMHO that's quite normal and actually I've had similar effect with the A99 and it never really bothered me in either camera since it goes almost unnoticed after a while.

...Lucas

Always having fun with photography
http://www.lucaspix.smugmug.com/

 Lucas_'s gear list:Lucas_'s gear list
Minolta DiMAGE A1 Sony RX100 Konica Minolta Maxxum 7D Sony SLT-A99 Sony a6000 +36 more
Reply   Reply with quote   Complain
Jerry R
Veteran MemberPosts: 6,845
Like?
Thank you.
In reply to 5nex7, 5 months ago
-- hide signature --

Canon A2E, Sony R1, NEX C3 & 5R + Zeiss 24mm & 16-70 E Lenses, Nikon D5100 + 35mm, 85mm & Sigma 150mm lenses, Nikon V1 + 10-30 & 30-110 lenses.

Reply   Reply with quote   Complain
Jerry R
Veteran MemberPosts: 6,845
Like?
Thank you
In reply to dquangt, 5 months ago
-- hide signature --

Canon A2E, Sony R1, NEX C3 & 5R + Zeiss 24mm & 16-70 E Lenses, Nikon D5100 + 35mm, 85mm & Sigma 150mm lenses, Nikon V1 + 10-30 & 30-110 lenses.

Reply   Reply with quote   Complain
Jerry R
Veteran MemberPosts: 6,845
Like?
Re: I am able to reproduce the fluctuations in both spot and multi metering modes. However,
In reply to dquangt, 5 months ago

Thank you

-- hide signature --

Canon A2E, Sony R1, NEX C3 & 5R + Zeiss 24mm & 16-70 E Lenses, Nikon D5100 + 35mm, 85mm & Sigma 150mm lenses, Nikon V1 + 10-30 & 30-110 lenses.

Reply   Reply with quote   Complain
dquangt
Contributing MemberPosts: 995
Like?
you're welcome
In reply to Jerry R, 5 months ago

i also noticed the same thing before on my previous 5R as well as the a6000 when i was playing around with zooms so i'm pretty confident that's what's going on.

Reply   Reply with quote   Complain
Keyboard shortcuts:
FForum MMy threads