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I have an older 70-210 zoom lens with an Adaptall-2 OM mount. The zoom is a push-pull type with significant creep. How do I fix this, are there manuals to show what screw(s) to adjust?
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What mount do you have on the Tamron lens? (The built-in mount.) If it has a Nikon mount, you don't need an adapter at all. If it has the Adaptall mount then the adapter should fit onto the back of the lens, then the combo should fit onto your Nikon camera. If the lens has a different mount then nothing you can do will make it fit.
This is fixed lens camera. Key Features
Digital Zoom
8x
Camera Type
Compact
LCD Screen Size
2 in.
Resolution
5 Megapixel
Optical Zoom
Without Optical Zoom
Image Quality
Camera Resolution
5 Megapixel
Image Sensor Type
CMOS
Video
Video Resolutions
640 x 480 (VGA)
Lens
Interchangeable Lens
Not Interchangeable Lenses
Optical Zoom
Without Optical Zoom
Exposure Control
White Balance
Underwater (Preset)
Storage
Memory Type
Built-in
•
SD Card
Built-in Memory Size
16 MB
Included Features
Self Timer
2 Sec.
•
10 Sec.
•
12 Sec.
Tripod Mount
With Tripod Mount
Interfaces
Interface Type
USB 1.1
Power Supply
Battery Type
2 x AAA Batteries
Dimensions
Depth
0.83 in.
Height
2.3 in.
Width
3.5 in.
Miscellaneous
UPC
859108008797
Product ID
77004823
Included Accessories
2 x AAA Batteries
•
USB Cable
•
Strap
•
AV Cable
Hi,
The focal distance on Pentax camera's is different then the focal distance on Nikon's so because of that Pentax lens' can't be adapted to work on a Nikon camera. I'd suggest finding a similar lens with a Nikon mount as cross brand mounting is quite difficult.
The "problem" is that the lens has a zoom creep issue. If you are the original purchaser, and the lens is under 5 years old, you may want to contact Nikon repair facilites in Melville or El Segundo to have it checked out.
Some users on forums have claimed that Nikon fixed the plastics ring that contribute to the zoom creep. Apparently, using a rubber band around the zoom ring will minimize the problem.
Hope this helps,
Andrew
buy the glass that does not zoom via push pull - When they get old and sometimes right off the shelf new the push pull zooms get loose - the only fix is for you to have it serviced and even then it is a temporary fix as the very nature of what you do to use the zoom will ultimately cause the same problem to occur.
As long as you can get the correct Tamron Adaptall 2 mounting for it, then it will fit. They're no longer made and not always easy to obtain at reasonable prices.
Adaptall 2 mounts for Minolta autofocus were never made, but the earlier MD mounts were, and they will fit any Minolta or Sony SLR. Obviously, there will be no autofocus but you will also find that you have to focus with the aperture ring wide open and then manually meter and take the shot after you have selected the aperture which you require.
You probably have to set the aperture manually on the lens, because it
might not have CPU contacts. I think changing the aperture on the
camera will probably have no effect, so just try twisting the aperture
ring to wide open.
You usually have to set the aperture at the minimum setting (highest
number) so that if the camera is choosing the aperture, it can stop
down to the required value.
No good having it set at f2.8 if the shot needs f11.
If the lens is very old, it might have a manual iris that you have to
set yourself on the lens. The lenses that stop down automatically will
have a tiny peg on the mount that a suitable camera can operate. Gentle
pushing of this peg while looking through the lens will tell if it is
stopping down - set it wide open first.
If you have a depth of field preview button, this will also have the
same effect with the lens on the camera if the body matches up with the
lens.
The zoom creep is an easy fix for Canon. I really do not recommend trying to tighten it yourself, since that would void your warranty.
It is usually free to tighten the zoom ring.
/Chris
I went on E-bay and searched "lens adapter olympus om to nikon and got seven (7) hits in the $12 to $20 range. You will need to specify the type of Nikon mount.
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