Do filters all need an adaptor? I have a s5500 with a 55mm thread on the end. but I take it a hoya 72 IR filter will like all filters need a filter holder? Why dont they just screw in?
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425 Answers
Re:
You can get screw-in filters, but those that require adaptors or holders are more versatile, as you can use them on a variety of different sized lenses.
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If you have 52mm screw in filters, look at the filter and you will notice that the metal ring has threads. Look at the inside of the rim surrounding you lens front element and you will also see screw threads. Carefully align the filter with the lens threads and screw them together. Do not over tighten or you will have difficulty removing your filter.
Although less common today, unthreaded filters are or were in the past available. If you have unthreaded filters, you will need to buy a 52mm filter adaptor. The adaptor is made in two screw together pieces. Unscrew the two pieces, drop the filter in between them and screw them back together. Then, screw the adaptor onto your lens.
Since Tamron has never made a lens with a fixed focal length of 72mm, I assume the 72mm is referring to the filter thread. I also assume you mean the Hoya RM72 infrared filter. The "72" in the filter name is a description of the filter and has nothing to do with its physical size. One vendor lists the RM72 filter in sizes ranging from 46mm to 77mm. As long as you get the filter to match the thread on the front of the lens then it will screw right on.
The filter doesn't go onto the camera, but onto the lens. Assuming it's the proper size, it should just screw into the threads on the front of the lens (the end away from the camera). If the lens hood is on, remove it first.
That lens takes a 77mm filter - if you examine the end of the lens very closely, you'll see some threads just on the inside lip of the very edge - the filter screws on to the end via those threads.
Hi,
Based on the fundamentals of retaining rings, The filter lens probably fits into the ring housing first, and the retainer ring is inserted inside of the ring, following the lens. The retainer will need to be compressed in order to fit inside the ring, but will snap into a groove once in proper position.
I hope this is helpful... Good luck.
Check it by point the lens at an IR source, like a remote control. Click on the remote, if you can see the IR light in the LCD finder, then the camera is sensitive to IR and should work.
I think it will. The specs on the CD400 is almost completely the same as the S85 (excepting the obvious differences) and it probably has a lot of the same guts.
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