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Ed in GA · 02-19-2008, 08:29 AM

I just received two UV filters that I purchased through Amazon.com

They don't appear to be the HMC series, so I doubt that I'll use them.

However, they have a sticker on them with this information..

49mm
PITCH:0.75

I've never seen this "Pitch:0.75" on any filter which I have previously purchased.

Can someone tell me what this means?

TIA

Ed

deejjjaaaa · 02-19-2008, 08:52 AM

Originally posted by Ed in GA

Can someone tell me what this means?

I think

Thread - DiracDelta Science & Engineering Encyclopedia

Quote:

Thread Pitch

The distance from a point on one screw thread to a corresponding point on the next thread

Ed in GA · 02-19-2008, 09:31 AM

Thanks

That was exactly what I was looking for.

Ed

02-19-2008, 08:29 AM	#1
Ed in GA Guest	Question about Hoya UV filter I just received two UV filters that I purchased through Amazon.com They don't appear to be the HMC series, so I doubt that I'll use them. However, they have a sticker on them with this information.. 49mm PITCH:0.75 I've never seen this "Pitch:0.75" on any filter which I have previously purchased. Can someone tell me what this means? TIA Ed

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02-19-2008, 08:52 AM	#2
deejjjaaaa Veteran Member Join Date: May 2007 Location: steel city / rust belt Posts: 2,043	Originally posted by Ed in GA Can someone tell me what this means? I think Thread - DiracDelta Science & Engineering Encyclopedia Quote: Thread Pitch The distance from a point on one screw thread to a corresponding point on the next thread

02-19-2008, 09:31 AM	#3
Ed in GA Guest	Thanks That was exactly what I was looking for. Ed

Question about Hoya UV filter

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