Re: Canon EFS17-85 mm Image Stabilizer Lens stuck in...
The USM focus works by applying pressure to a set of rollers. That pressure is achieved with a large diameter spring washer. It is held in place by another large diameter flat washer that on assembly is rotated 60 degrees to lock it in place. If the lock washer has moved due to mechanical movement (ie rapid manual movement of the focus ring) it could unlock and then all pressure to the USM motor parts and rollers is lost giving the loose feel you mentioned.
You will need to dissassemble the rear of the lens to see the USM motor parts, rollers and locking ring to reattach it. Follow the links at my pbase gallery to see the dissasembly. When I took my lens apart the focus and USM motor went all loose and I wondered how could it work ever!!!. The locking ring was off which sounds just like your fault. http://www.pbase.com/barry_2718/efs1785mm I also have a flex cable cracked which is a much harder fix. Take careful note of the parts (mark then with a felt marking carefully) to achieve a reassembly exactly as removed.
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Have a look at this page for discussion about this adapter. Depending on the lens you're using it with - the DOF can be extremely shallow and make focusing difficult. If you're in Auto Focus mode - try switching to manual and see if you can get better results.
Yes. Bear in mind that many Canon digital SLRs have a sensor smaller than a frame of 35mm film. This results in the image being cropped, narrowing the field of view and making the lens behave as if it was of a longer focal length.
Sorry, but salt water immersion is effectively just as destructive to your camera and lens as if they had been crushed or burnt. If the body and lens were immersed in seawater then they are complete write-offs as they will be completely beyond economic repair.
Have you tried cleaning the contacts? Taking out BOTH batteries? (There's a button cell as well as the main battery.) If you have a second lens you can test, i'd give that a shot first.
Either way, probably need to have it replaced or repaired right away.
Finally, have you got the latest firmware version? The XS is currently
at version 1.0.5, which was released in April of this year. You can
download it here.
Put the macro adapter on the camera and move the camera in and out from an object to try to focus the object in the display. Remember, macro is very small, very close and very small field-of-focus. I hope this helps.
I will try to help you, but please understand that my experience is with Nikon film cameras. Assuming that the D60 works in a manner similar to a Nikon 35 mm body and that Sigma macro lens work like Nikon macro lens, you should be able to determine the usable subject to lens distance by experimentation. First, make sure the lens is in the macro mode. To do this you must set the auto-focus mode control to the manual focus mode (see your manual). On Nikon lenses, you must first set the focus ring to infinity, then move slider switch, which has two positions marked; "normal" and "macro., to the macro position. You should now be able to rotate the focus ring to the macro range. Use the zoom ring to zoom in and out and focus with the focus ring. The the range over which the lens to subject to lens distance will yield an in focus image will be rather limited and in the range of an inch or so to 6 or 8 inches.
(From Sigma lens literature) Capable of macro photography, this
lens has a 1:2 maximum close-up magnification at the 300 mm focal
length. It's the ideal high performance lens for portraits, sports
photography, nature photography, and other types of photography that
frequently use the telephoto range. It also has a switch for changeover
to macro photography at focal lengths between 200mm and 300mm with a
maximum close-up magnification from 1:2.9 to 1:2. The minimum focusing
distance is 1.5m / 59 in. at all zoom settings.
That is the focusing ring. I'm guessing your camera is set to focus automatically (Little switch on the side of the lens should have settings for either AF or MF, or something similar.)
If its on AF, you don't need to adjust the focus ring. However, if you have problems with the AF (sometimes it has trouble, especially in low light) you can switch it to MF, and focus manually by changing the ring.
As a general guideline, the more you twist to towards macro, it focuses closer and closer, and infinity futher away (if you're taking a shot of the moon, you want it on infinity)