Author Topic: NO LENS ATTACHED - ERROR MESSAGE  (Read 33057 times)

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Offline AScot

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Re: NO LENS ATTACHED - ERROR MESSAGE
« Reply #30 on: August 05, 2014, 11:30:27 PM »
tpa, Just because you have had it happen with a brand new Sony lens in the middle of a shoot, does not justify jumping to the conclusion that it is a problem with the detection sensitivity set by the manufacturer. Jumping to conclusions is not a very productive way to solve a problem. Please read this entire thread or google it on the web and you may find a possible answer to your problem. I assume you have also read the manual?

If when mounted does your lens wobble a little? If so it is possible that you have a camera and lens manufactured at the opposite ends of the manufacturing tolerances. The camera gets all its information from a chip in the lens, which passes through the eight contacts and has nothing to do with manufacturer sensitivity settings or software detection faults, merely electrical contacts from chip to chip. This is the main reason many members advise cleaning the contacts.

After exhausting all possible reasons that will allow a user to fix the error, take it to Sony and have them diagnose it. The camera is as you say, a nearly new camera, so the warranty should be available.

Good luck.
Sony A7, A850, A77, A700 || Sony>> 70-300G, 28-75 f2.8 SAM, 16-80CZ, 50 f1.4, FE 28-70 OSS, FE 24-70CZ f4 OSS, LA-EA4 || Minolta>> 300 f4 G HS, 200 f2.8 G HS, 100 f2.8 (D) Macro, 50 f1.7, 28 f2.8, 28-135 f4-4.5, 70-210 f4, 500 f8 Reflex, TC x 1.4 HS, TC x 2 HS. || Sigma 21-35 f3.5-4.2. || Tamron SP 24-135.

Offline retoohs

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Re: NO LENS ATTACHED - ERROR MESSAGE
« Reply #31 on: August 30, 2014, 11:30:10 PM »
Sorry if this has already been said but incase it hasn't a pencil rubber is fantastic at cleaning contacts. Just be careful to hold it upside down so the rubber shavings don't end up where you don't want then.
Buying a Nikon doesn’t make you a photographer. It makes you a Nikon owner.

Offline tpa

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Re: NO LENS ATTACHED - ERROR MESSAGE
« Reply #32 on: September 01, 2014, 08:07:38 PM »
Thank you for your reply ASot. I'll try to cover your points briefly. First, I'm an engineer, I work through the options to try to eliminate them. Cleaning the contacts has no effect, in fact the problem can appear be worse just after, but that is probably coincidence. As soon as it occured for the first time I checked the lenses, the screws, and ensured the contacts were making contact. No physical problems.
If it was a manufacturing tolerance problem on the scale that it appears to be happening then it would definitely come under the manufacturing or design error category.
The fact that the message can appear when the camera is simultaneously struggling to focus then seconds later take a picture, without any physical change points to software problem.
The camera was new once, but I have been living with the problem for a few years now.
Interestingly it is much less of a problem with my old Minolta lenses than with the newer Sony lenses.
Until I get a satisfactory answer to the problem, it is not going anywhere near a repair shop as you could almost guarantee it would work perfectly in the shop and fail again as soon as I got home. A few days ago it worked perfectly for a couple of hours taking a couple of hundred pictures, then as soon as the timing of the shots became critical it occurred virtually ever other shot, losing me most of them.

Offline chappo1

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Re: NO LENS ATTACHED - ERROR MESSAGE
« Reply #33 on: September 01, 2014, 11:35:30 PM »
What about a loose connection inside the body?  john
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Offline tpa

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Re: NO LENS ATTACHED - ERROR MESSAGE
« Reply #34 on: September 02, 2014, 03:42:05 PM »
What about a loose connection inside the body?  john

Presumably that would affect all lenses more or less equally which is not the case. If all the 20000 people who have viewed this thread had loose connections, that would definitely be a manufacturing or design problem.

Offline AScot

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Re: NO LENS ATTACHED - ERROR MESSAGE
« Reply #35 on: September 02, 2014, 09:26:23 PM »
The 20,000 views are not an indication of a fault, merely a topic that is of interest to many non members (Guests). They read the answers, try the suggestions, fix the problems and go away, or they may join the forum to thank us.

If you look at this Topic it started on June 11, 2008 and was reactivated on August 03, 2008,  February 11, 2009, August 19, 2012 and finally by you on July 19, 2014, a period of over 6 years. It also has been raised in numerous other posts, back to 2004. As far as I can remember almost all the people who had this problem were able to solve it. This problem has existed since the first interchangeable lens cameras were introduced. The most frequent cause by far is dirty or oxidised contacts. The second most frequent cause is a wrong setting on the camera and the third is trying to use an incompatible lens or non AF lens. Another problem is a malfunction in the camera, however that is not very common, relative to the times the error appears.

You wrote in your last post "First, I'm an engineer, I work through the options to try to eliminate them". If that is meant to prove that you are above making errors in judgement, then I am not impressed. As an Engineer you should know better. I am a retired Civil engineer and I have a three year diploma as an Electronics Engineering Technologist. Does that make me any better or more knowledgeable than the members on this forum? No it does not! I am in awe at the photographic abilities of many of our members, I often wish I was half as good.

As I said before, After exhausting all possible reasons that will allow a user to fix the error, take it to Sony and have them diagnose it. The camera is as you say, a nearly new camera, so the warranty should be available. If you bought it used you may not have a warranty, so I would advise you to take it to a technician and have it diagnosed. Finally, if you are a Electronics Engineer, then perhaps you could open the camera and fix it yourself. ???
Sony A7, A850, A77, A700 || Sony>> 70-300G, 28-75 f2.8 SAM, 16-80CZ, 50 f1.4, FE 28-70 OSS, FE 24-70CZ f4 OSS, LA-EA4 || Minolta>> 300 f4 G HS, 200 f2.8 G HS, 100 f2.8 (D) Macro, 50 f1.7, 28 f2.8, 28-135 f4-4.5, 70-210 f4, 500 f8 Reflex, TC x 1.4 HS, TC x 2 HS. || Sigma 21-35 f3.5-4.2. || Tamron SP 24-135.

Offline tpa

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Re: NO LENS ATTACHED - ERROR MESSAGE
« Reply #36 on: September 03, 2014, 04:25:19 PM »
I have discussed twice with Sony. The first time over a year ago they were no help at all. The second, more recently, they were more constructive and asked me to try the lenses with a different body and vice versa. Unfortunately I don't have that option unless I can persuade a camera shop to let me play around with compatible equipment for as long as it takes. I don't have any local camera shops, so that will have to wait for the time being.