Question about Bronica 50mm f/3.5 Zenzanon PS Lens

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Just bought this lens in hurry, didnt check it thoroughly but there is a smear on the inside element of the back lens(nearest the mount) will this affect picture and can it be cleaned.

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Maybe, and likely

Posted on Dec 07, 2009

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A smear on the picture


Not easy, with so little to go on, but I try. If it is from left to right complete, could be the sensor (or the connection to the sensor). If it is only partial, it also could be on or in the lens, but that is not very likely.
I think you mean it is on the photo's, and you can or can't see it on the monitor, or is it the other way around? seen on the screen and not on the photo's is something different and not s catastrophic. If really the smear is on the photo, I guess you have to contact your nearest repair centre or buy a new camera.

Dec 09, 2013 | Fuji FinePix S6500 Digital Camera

1 Answer

What should i do?...my tamron 17-50 began to have a fungus.


Well, that's a great lens and most definitely worth the cleaning/service. I don't know where in the world you are but fungus growing inside a lens is only heard of in high humidity environments and can happen fairly quickly. Are you sure this is a fungus on the inside and not just a clouded smear on the front element? If the lens is having a problem then the camera won't be to far behind. To answer your question more directly "what should I do" my suggestion is to send the lens to a authorized Tamron service/repair center/depot for cleaning. After which get a few of those little moisture absorbing packets and place them in with your photo gear to help reduce the moisture.

Jan 19, 2011 | Tamron 17-50mm f/2.8 XR Di-II LD [IF] SP...

2 Answers

My nikon camera was dropped by a friend.the lens is jammed and wont turn.When i looked inside the lens there was a black plastic ring,and it had come loose,there doesnt seem to be anything else broken,how...


Do you have a lens collimator and other equipment necessary to make sure the lens elements are aligned properly when you put it back together? If not, DO NOT try to take the lens apart yourself, but have it fixed by a trained professional.

Aug 09, 2010 | Nikon Nikkor 18-55mm f/3.5-5.6G ED AF-S DX...

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Side out of image


I'm assuming in what follows that you've tried other lenses and only get the problem with this one lens. If you haven't, then it's essential to do this first unless the lens is obviously the problem. If it happens with other lenses then you have a damaged image sensor mounting within the camera body which will need professional attention.

This is a common problem on this particular lens. Normally it's due to the front element of the lens being slightly skewed on the lens barrel and most commonly occurs after the lens has been dropped.

Turn your lens to manual focus and focus to the shortest distance. Set the lens upright on a table and carefully view all around, if the problem is the front element it will lean slightly to one side like a miniature leaning tower of Pisa. If it doesn't, then check again with greater precision using a ruler to measure the distance s between the lens barrel and the focussing ring and a number of opposite points around the circumference. If they're anything but identical then the lens is skewed. If they are identical then the skewed element is buried deep inside the lens and will need professional repair as it's most likely a fault with the moving element used for image stabilisation.

If the tests confirm that the front element is skewed then if you're really careful and lucky you can often jiggle the front element using a firm twisting action back into place. It does take a bit of judiciously applied brute force and if unsuccessful you can make the problem worse, but either way if you don't try then the lens needs professional repair and new internal parts.

I've had this problem on about one of these lenses every month or so for the last year. The brute force repair works in about half the lenses I try it on and normally lasts. On the others a strip down repair usually shows the same range of broken/worn parts as I find on those lenses which clearly are too far gone to attempt the brute force method.

The difference is cost: the brute force repair costs nothing. The proper repair is often economically unviable as it often costs 50% to 70% of the cost of a brand new lens with a warranty.

Sep 05, 2009 | Canon 28-135mm f/3.5-5.6 EF IS USM AF Lens

1 Answer

70-300 DL Sigma Macro Zoom lens element loosened, and then reset


amaizin, That's not really normal, because you might only normally hear a tiny noise if you shake a lens not mounted on the camera, but not loose glass sound, everything is fixed and solidly set for alignment when focusing if any element is loose it could never be able to get a clear focus and the element would be so scratched there would be all kinds of distortions even if it went "back into" place. You'll hear loose glass after you drop a lens on to the sidewalk or hard surface and an element is dislodged. Inspect the lens body for an impact mark a lightened portion in a ring shape where the metal or plastic has been stressed or the telltale signs of an abrasion from something like a hard rough surface such as concrete (a little group of pin **** on a corner). The lens should be inspected by a reputable shop to determine if it needs to be repaired or replaced. I take it that you were selling it to upgrade to another lens or other equipment. randy320sgi

Jan 29, 2009 | Cameras

2 Answers

Cant find heating element for kenmore 80 series dryer


it should be in a housing mounted just inside the back panel. unlatch the housing from its mounts and the element slides out from the bottom

Jan 02, 2009 | Kenmore 63942 Dryer

1 Answer

Aperture cannot open fully


As you have found out, it is not a lubrication issue. It would seem that your lens has a problem with the linkage arm inside the mount. The arm that extends out of the mount could be bent or misaligned. It would be fixable, but the parts are somewhat delicate. Best to let a good repair person have a look.

Dec 29, 2007 | Nikon 105mm f/2.5 Nikkor Ai-S Lens

1 Answer

System error


It sounds like there is a piece of debris floating around inside the zoom motor assembly. This would explain the way it sometimes works and sometimes doesn't. It is also possible that one of the lens elements has been damaged at some point in the past and is prone to jamming now. Try gently manipulating the lens as you power on the camera, slightly twist pull and push to see if you can pop the misaligned element back into place. If this does not work you may have to send the camera in for repair. Check online for repair providers, or contact your manufacturer. David Millier Advance Camera Repair

Mar 11, 2007 | Panasonic Lumix DMC-FZ20 Digital Camera

1 Answer

Lens does not open,camera does not start


From what you describe the problem could be a couple of different things. The focus element inside the lens may have come off its track. Heres how to tell: If the lens shield has closed completely and you can not see down into the lens: *Does any text come up on the LCD before it turns off? Such as "E18" or "E25"? If the lens shield has not closed completely and you can see down into the lens: *When you shake the camera can you see something moving inside the lens? In either of these cases the problem is that the camera cannot move the lens due to the moving parts being jammed. This will require a repair service to go into the camera and reset the dislodged elements. In either of these cases the camera will display an error message on the LCD before it powers off. If it does not do this, let me know and I will give you other possible explanations.

Feb 22, 2007 | Canon PowerShot A520 Digital Camera

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