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Tred
29th October 2015, 01:11 AM
I need to use a 55mm filter on a 45mm and 17mm Oly lens so I purchased a 55 to 37 step down ring for the 45mm 1.8 lens.
The filter screw is fine but the lens thread is female and, of course will not fit the lens.
What do I have to order as I have seen no step down rings which differentiate between male and female threads.
Cheers
Tred.

RobertD
29th October 2015, 03:11 AM
Not sure what you have but a 37mm to 55mm step up should work.
http://www.ebay.com.au/itm/37-55mm-37mm-to-55mm-Aluminum-Step-Up-Filter-Ring-Adapter-for-Camera-/271999474879
Rob

Ross
29th October 2015, 03:44 AM
I need to use a 55mm filter on a 45mm and 17mm Oly lens so I purchased a 55 to 37 step down ring for the 45mm 1.8 lens.
The filter screw is fine but the lens thread is female and, of course will not fit the lens.
What do I have to order as I have seen no step down rings which differentiate between male and female threads.
Cheers
Tred.

The difference between a step up & a step down adapter is what gives you the male or female inner & outer threads & Rob has linked the correct one for your use as you will be stepping up from a smaller lens to a larger filter thread. A step down filter adapter would be if you wanted to fit a smaller filter on a larger lens. I hope that makes it clearer for you.

*chr

RobertD
29th October 2015, 04:08 AM
Thanks Ross! I thought it must be something like that.
Cheers, Rob

Tred
2nd November 2015, 11:12 AM
Thanks guys - all is clear - until my next problem!!
Cheers
Tred