Hey guys  but I'm not sure if it's for my micro 4/3 camera:
10521
When looking at a lens name, there are a lot acronyms describing its features (often specific to the manufacturer).   Examples, Nikon: Nikon AF-S DX 16-85mm VR f/3.5-5.6G IF-ED Nikon AF-I 600mm f/4D IF-ED Nikon AF-S VR Micro-NIKKOR 105mm f/2.8G IF-ED    Examples, Canon: Canon EF 85mm f1.2L USM Mark II Canon 70-300mm f/4.5-f/5.6 DO IS    Examples, Sigma: Sigma 150mm F2.8 EX APO DG HSM Macro Sigma 70-200mm F2.8 EX DG OS HSM Sigma 50-150mm F2.8 EX DC APO HSM II    How do I decipher these lens codes from different manufacturers?
38859
I have a Canon XL1 interchangeable lens video camera. Can I use an adaptor to use its lenses with a DSLR or an SLR? I know about it using a smaller sensor and that it is closer to the sensor (as in ) but maybe there is an adaptor that gives it some space. I wouldn't mind if the picture is cropped. It's just so hard to sell this for nothing. The optics and glass used in this lens are top end.
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I was looking to get a circular polarizing filter and an UV filter for my Canon 550D, 18-135mm lens. When I checked online I found these filters came in different sizes, like 62mm, 67mm, 72mm, 77mm. How do I know which is right?  Also, will there be any degradation of photo quality if I put both these filters on the lens?
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I am searching for either a camera app with hardware button support, or for some other solution that would make it possible to use hardware buttons for making photo (shutter) in a camera app.  My phone, Samsung Galaxy S III mini doesn't have separate camera button, only power button, home button, back and menu buttons, and volume rocker.  It is IMHO much easier to use hardware button than to try to hit software button on camera screen.  I think this should be possible, because built-in Phone Call app can be configured to accept call with Home button, and end / cancel the call with Power button.    This question can be considered to be continuation of  which is about using hardware button (e.g. Home) to start camera.
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I know a few people who carry around a dedicated light meter unit (such as ) and use that to meter photos instead of using the meter built into their cameras (and these are relatively new mid-range DSLRs).  Is there any good reason why someone would do this?
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I've been seeing these dark spots in my pictures. They appear a lot more on some pictures than others, but they are in the same place in the image and independent of the lens being used. Is this dust? I've also heard that you can get oil spots on the sensor.  The image is from a Nikon D7000.
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Does Class 4 perform differently from Class 6, and so on, when it comes to Micro SD(HC) memory cards on smartphones? Samsung Galaxy S to be specific.
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I have an Olympus OM-1 which I've been using as a backup camera for my film Canon Rebel. However, when the mirror trap became stuck "up" in the Olympus, I tried gingerly to pull the trap back down. It eventually gave way and reset properly — but not before cracking and having pieces break away.  The camera still works great. The broken mirror doesn't mess with the viewfinder nearly as much as I thought it would, but it bothers me. Is it possible to repair this on my own? If so, how?
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Err 99      Shooting is not possible.   Turn the power switch to &lt;OFF&gt; and &lt;ON&gt; again or re-install the battery.   Every now and then when shooting with this lens, I'll get this error and have to turn the camera off and on to resolve. Of course I've missed the shot of the day by this time!  I'm pretty sure it's the lens, because I've shot with plenty other lenses on that body, and never get the error..  Anybody found a better solution, short of sending the lens in?
3259
I have a AF Nikkor 50mm f/1.8. When I have the aperture setting on the lens to 22 I can take photos. But when I change the dial to anything other than 22(lowest f/stop) then I get a flashing fEE message and r09 where the number of exposure left is.  I don't have the manual for this lens but am just wondering if anyone knows what the issue is here.  My camera is a Nikon D70S.
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I took these pictures with my Canon EF-S 15-85mm f/3.5-5.6 IS USM lens this morning:  Would somebody please tell me that what is that white part in the lower right corner of the picture?  EXIF info: F/8 ISO 100 1/125sec Focal Length : 85mm   And what are these circles in the center of this picture?  EXIF info: F/8 ISO 100 1/125sec Focal Length: 15mm   Thanks
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Please let me know how to change the size of the camera view. The red dotted line of the square is too small for me.
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I have an older Olympus OM 50mm lens that I'd like to get a matte box for, as I'm going to use it for video on a 550D. However, I can't seem to figure out what the thread diameter is. There are no markings on the lens itself to indicate what diameter. How do I figure this out?    Here's the lens I have. It's the standard 50mm ƒ/1.8 kit lens that came with many Olympus OM lenses in the '80s
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I own a Nikon D3000 Camera with the AF-S 18-55mm VR Kit Lens. Last week I lost the lens cap and now I want to buy a new one.  But when I went to , I got confused with the different ranges of lens names —  LC-62, LC-78, etc.  My concern is what if I order one lens cap and it won't fit correctly on my lens?  If you guys have an D3000, can you please let me know how to find the correct lens cap names?
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I have a 2 GB SanDisk MicroSD card.  I normally use this card in my Nikon camera but ever since I used it in a Brother printer, I cannot delete any of the files, write or format the card.  I've searched online, including SuperUser, but my problem seems unique in that I do not get any errors when deleting, writing or formatting card.  Nikon Camera:  Everything appears normal when using this card taking pictures... no errors when supposedly saving the photo.  However, when trying to view pictures, the camera reports that none can be found.   I can do a "Quick Format" within the camera'a Setup screens but the card is not formatted and no errors reported.   Brother Printer:  Scanning direct to this MicroSD card.  (this is the incident that "broke" the card)  First document scanned fine.  Every subsequent attempt since then always gives an "Out of Memory" error.  MacBook:  I am manually deleting the files without errors, but the next time I insert the card, the files re-appear.  SDFormatter:  I downloaded and installed the latest version of .  I am doing a "Overwrite Format" option, I get no errors, and the format completes with a success message.  However, all of the original files remain on the card!  I am using a MicroSD to USB adapter with the MacBook and a MicroSD to SD card adapter with the Nikon.  Clearly, based on all observations above, I cannot write to the card.  Weirdly, with the exception of the Brother, I just don't get any errors when writing.  It's like the card is locked, even though it cannot be locked without the hardware lock on the SD adapter, and I never get any "write protection" errors.  I suspect that a corrupted MicroSD card is the root problem, but here are my questions:   Why would I not get any errors when writing, deleting or formatting? What can I do or use to verify the hardware integrity and/or fix this card as needed?
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I have been using my dad's old Metz mecablitz 18 B1 flash for a while with my Canon 7D and had no trouble with it, but just received some advice from a friend that using old flashes can fry the camera. Is this true? And if so, is there a safe way to use it (I'm trying to avoid having to buy a new flash – but also would like not to destroy my camera). The flash takes 3 x AA batteries and has a single hotshoe connection.
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Can anyone help me identify this component? It just says 0 or D on it (I think it's a zero). I tested it for conductivity with a multimeter - doesn't seem to have any (tried both polarities in case it's a diode). Tested for resistance: nothing (i.e. infinite resistance), although I'm not 100% sure I was touching the contact points correctly, so don't take this as an ultimate measurement. Thanks in advance!