Filter thread pitch? at DVinfo.net

Marco Leavitt · October 5th, 2005, 01:54 PM

Need to have a 34mm to 58mm step up ring custom machined. SK Grimes, which will do the work, wants to know what the pitch on the threads should be. They think that the 34mm end is .5 and the 58mm side is .75. I'm skeptical. Anybody know for sure?

Joshua Provost · October 5th, 2005, 02:21 PM

Marco, what is the device on the 34mm side?

Most filter threads are .75 mm.

Marco Leavitt · October 5th, 2005, 02:42 PM

Optura 60. Trying to mount a WD58 on there.

Joshua Provost · October 5th, 2005, 03:04 PM

Marco,

The 34mm is probably .75 mm thread pitch, too.

You don't need to get a custom ring for this. You can put together a 34->46 and a 46->58 (or 34->37 and 37->58). Go to http://www.camerafilters.com/pages/adapterrings.aspx and you can get it all for $10.

Josh

Marco Leavitt · October 5th, 2005, 03:13 PM

Yeah? I was fairly obsessed with doing this in one step. Two step-up rings seems like kind of a lot of space between the lens and the camera. I'll probably try the double ring route first.

Cody Dulock · October 5th, 2005, 09:05 PM

you will be fine using two step rings since you are stepping up to a larger size, so it will keep the vingetting down for the wide angle adapter. right now i use 3 step up rings on my little camera.

October 5th, 2005, 01:54 PM	#1
Marco Leavitt Inner Circle Join Date: Jul 2002 Location: Albany, NY 12210 Posts: 2,652	Filter thread pitch? Need to have a 34mm to 58mm step up ring custom machined. SK Grimes, which will do the work, wants to know what the pitch on the threads should be. They think that the 34mm end is .5 and the 58mm side is .75. I'm skeptical. Anybody know for sure?

October 5th, 2005, 02:21 PM	#2
Joshua Provost Major Player Join Date: Sep 2004 Location: Phoenix, AZ Posts: 493	Marco, what is the device on the 34mm side? Most filter threads are .75 mm. __________________ Owner/Operator, 727 Records Co-Founder, Matter of Chance Productions Blogger, Try Avoidance

October 5th, 2005, 03:04 PM	#4
Joshua Provost Major Player Join Date: Sep 2004 Location: Phoenix, AZ Posts: 493	Marco, The 34mm is probably .75 mm thread pitch, too. You don't need to get a custom ring for this. You can put together a 34->46 and a 46->58 (or 34->37 and 37->58). Go to http://www.camerafilters.com/pages/adapterrings.aspx and you can get it all for $10. Josh __________________ Owner/Operator, 727 Records Co-Founder, Matter of Chance Productions Blogger, Try Avoidance

October 5th, 2005, 02:42 PM	#3
Marco Leavitt Inner Circle Join Date: Jul 2002 Location: Albany, NY 12210 Posts: 2,652	Optura 60. Trying to mount a WD58 on there.

October 5th, 2005, 03:13 PM	#5
Marco Leavitt Inner Circle Join Date: Jul 2002 Location: Albany, NY 12210 Posts: 2,652	Yeah? I was fairly obsessed with doing this in one step. Two step-up rings seems like kind of a lot of space between the lens and the camera. I'll probably try the double ring route first.

October 5th, 2005, 09:05 PM	#6
Cody Dulock Major Player Join Date: Sep 2004 Location: arlington, texas Posts: 420	you will be fine using two step rings since you are stepping up to a larger size, so it will keep the vingetting down for the wide angle adapter. right now i use 3 step up rings on my little camera.