Jump to content

Noctilux Aperture Ring Inverted?


pyang921

Recommended Posts

Advertisement (gone after registration)

Hello there! I just got my new Noctilux 0.95 from Amazon and immediately I found that the aperture ring on the lens is inverted, i.e. the numbers are facing the bottom of the lens and the aperture white dot is facing down as well. The lens itself is functional and not defective but this makes the adjustment of the aperture really inconvenient. Any way to fix this? Thanks!

Link to post
Share on other sites

Hello there! I just got my new Noctilux 0.95 from Amazon and immediately I found that the aperture ring on the lens is inverted, i.e. the numbers are facing the bottom of the lens and the aperture white dot is facing down as well. The lens itself is functional and not defective but this makes the adjustment of the aperture really inconvenient. Any way to fix this? Thanks!

 

Just for reference I post below an image of what the aperture ring should look like. As yours is inverted, I assume the aperture works the wrong way round as well i.e at 0.95, the diaphragm is fully shut.

 

As a fellow sufferer of a faulty brand new Noctilux, you have my every sympathy. Mine is back at Solms at the moment for investigation. Once that is done, I will have to discuss with them whether to correct my current lens or replace with another new one.

 

Wilson

Welcome, dear visitor! As registered member you'd see an image here…

Simply register for free here – We are always happy to welcome new members!

Link to post
Share on other sites

Unless the whole aperture diaphragm sub-assembly is fitted upside down, fitting the ring upside down must mean that at 0.95 the diaphragm is shut and at f16 wide open. If the OP is correct and the white dot is at the wrong side it must be the whole ring that is upside down not just wrongly engraved because the white dot is on the smooth section and the aperture on a smooth arc between knurled sections. I would like to see a photo from the OP unless the whole thing is a wind up.

 

Wilson

Link to post
Share on other sites

Noctilux from Amazon?

 

Seems like a wind up to me - let's see a picture of the lens.

 

The Noctilux is listed on amazon.com so presumably people buy them that way. I don't see why this should be suspected as a wind-up given similar cases we know about.

 

But yes, it'd be interesting to see a photo of the lens.

Link to post
Share on other sites

I post a link to a post by Stefan Daniel responding to the folks whose aperture rings were wrongly positioned (turned 90º and 180º around the lens) http://www.l-camera-forum.com/leica-forum/customer-forum/89722-my-new-apo-summicron-75-asph.html#post940053

 

Well Herr Daniel, you say you were shocked by this failure of QC but not I think shocked enough, from the litany of really silly errors that have sailed past your QC team over the last few months. When Leica used rather primitive visual checking methods for RF focus, I can understand some lenses going out of the door with a bit of back or front focus but when the same check now takes seconds on a well calibrated M240, there is no excuse whatsoever. As for wrongly positioned Aperture rings, as I posted in another thread, they must employ Mr. Magoo as a checker or they are just not doing it.

 

Wilson

Link to post
Share on other sites

Unless the whole aperture diaphragm sub-assembly is fitted upside down, fitting the ring upside down must mean that at 0.95 the diaphragm is shut and at f16 wide open. If the OP is correct and the white dot is at the wrong side it must be the whole ring that is upside down not just wrongly engraved because the white dot is on the smooth section and the aperture on a smooth arc between knurled sections. I would like to see a photo from the OP unless the whole thing is a wind up.

 

Wilson

I rather doubt that the top and bottom of the ring are identical. It must be quite impossible to fit it upside down and have a working mechanism.
Link to post
Share on other sites

I rather doubt that the top and bottom of the ring are identical. It must be quite impossible to fit it upside down and have a working mechanism.

 

Jaap,

 

I doubt it as well but I cannot otherwise see how the ring can be fitted on reversed. I assume that there is a slot on one edge of the moving ring, which picks up on a tab on the diaphragm mechanism. The OP says it works. The whole story is difficult to comprehend.

 

Wilson

Link to post
Share on other sites

Back in the 1970 I worked in a camera store and we got a new M-4 in that had a bad lens mount you could not mount ANY lens on the camera. They replaced it rear quick, but kept telling us it could not happen and what were we doing wrong but the rep. came in and swapped it out for us. Stuff happens but we all remember when it happens to Leica because of the cost and they keep telling us how great their QC is......

 

wbill

Link to post
Share on other sites

Archived

This topic is now archived and is closed to further replies.

  • Recently Browsing   0 members

    • No registered users viewing this page.
×
×
  • Create New...