Do 62mm Extension Tube's Exist?

[Thinh__Le]

Hi all,

I recently acquired a Wollensak Verito 8 3/4” lens and I am interested in experimenting with playing around with the focal distances. The front lens removes and the threading for the front lens is at 62mm. Does anyone here know where I could acquire a 62mm extension tube? This would allow me to have the lens pushed further out from the camera and so I could focus in closer to the subject.

Let me know your thoughts and or suggestions!

All best,
Thinh

[Jon Shiu]

Wouldn't the bellows to your camera provide extension? Also 62mm was not a standard used by USA makers back in the day.

[Tin Can]

https://www.rothervalleyoptics.co.uk/takahashi-extension-tube-62mm-508-n71.html

[xkaes]

I've seen 55mm and 52mm extension tubes, so there might be 62mm tubes out there too -- but as hard to find as the 55mm and 52mm sizes. Since you probably don't need to move the front element out very much, one approach -- if all else fails -- is to buy a bunch of "trashed out" (glass-wise) screw-in filters. You should be able to get these for about the cost of shipping. Then you can adjust the distance much more finely than with extension tubes -- about 3mm at a time. But if you need a lot of extension, this might not work well.

[Bob Salomon]

Heliopan metal lens hoods would work.

[Daniel Unkefer]

I have three or four sets of these and they are easy to adapt to most anything. The screw together tubes are great for prototyping.

https://www.ebay.com/sch/i.html?_from=R40&_trksid=p3519243.m570.l1313&_nkw=wista+extension+board&_sacat=0

[reddesert]

https://www.rothervalleyoptics.co.uk/takahashi-extension-tube-62mm-508-n71.html

I think that is a 62mm long extension for a telescope focuser for 2" diameter (50.8mm) eyepieces. Not what the OP wants.

Spacing only the front cell of a lens away from the shutter and rear cell will typically not have desirable effects. I believe we're talking about a soft focus lens, so who knows, you might find it "creatively" useful, but expect increased vignetting, field curvature, and so on.