Bellows extension questions on the Ebony SV45Ti

[Jim Cole]

I'm thinking of upgrading my Ebony RW45 to a SV45Ti to allow me to use longer lenses.

The max extension on the SV45Ti is listed at 445mm. I would like to use my Nikon 450mm on this camera. According to the numbers, I may have to use tilts and rise to get the 450 to focus at infinity.

Anyone here have this combination that would tell me how it works? I have always felt limited with a 300 on my RW and didn't really want to go the route of the 400T.

Also, I have my 75mm Nikon mounted in a recessed lensboard and the min extension is 85mm (25mm longer than the 60mm on my RW45). Looks like I'll need to do the same tricks with this lens as well. Any users of this combo out there that can comment?

Maybe some comments about making this switch, too.

Thanks,
Jim

[C. D. Keth]

What kind of long lens work do you usually do? If you're always focused at infinity, then you may just be able to put the 450 on a tophat board. If you use it for a mixture of things closer than infinity, I doubt you'll be able to make that one work satisfactorily.

[Jim Cole]

Christopher,

It will be mostly for landscape work, not studio or close-up. I actually forgot that I had a tophat board that I use occasionally in the studio with the 300. I'll have to look and see if the Copal 3 will fit on the tophat.

Thanks for the suggestion.

Jim

[Jim Cole]

Just checked my Ebony extension tube set. I have two 35mm tubes and a Copal 3 adaptor, so I'm all set on the 450.

I still have a question on the minimum bellows on this camera and whether or not my 75 will work. If not, maybe I'll sell it and pick up a 90.

Thanks!

[drew.saunders]

Do you have the Nikkor SW 75/4.5? Ebony has a very handy table: http://www.ebonycamera.com/articles/lenses.html
You need 81.3mm of bellows to focus that Nikkor at infinity, so the 85mm minimum with the SV45Ti won't quite work, and you'd have to do at least some of the base+center tilt and rise trick to get that lens to focus. That table shows the Fuji SWD 75mm needs 85.1mm, so that might be an option if you can find one.

[Doremus Scudder]

Does that Ebony accept recessed lens boards? If so, that will likely be necessary given the post above. Any recessed board will get you infinity focus, since it's only a few millimeters that are needed.

Whether the bellows are too compacted to use movements is another issue, but there isn't too much wiggle room with a 75mm anyway.

<update> I just checked the Ebony website: they sell a 15mm recessed board which they say fits all their 4x5 cameras. That or a Linhof/Wista recessed board and you are in business.

Best,

Doremus

[Jim Cole]

Drew and Doremus,

Thanks for the reference to the Ebony table, Drew.

I do have the SW 75 f/4.5 and it is already mounted in a 15mm recessed board so it will probably work without movements at infinity. I wasn't expecting any movements as even with the recessed lensboard and the additional 25mm of room in my RW45, it doesn't allow but a wiggle here and there.

Thanks again to both of you,

Jim

[Former Member 27732]

Jim,
I've been using a Grandagon 65mm lens on an SV45Ti for some time, without any major problems. With a standard bellows there is still some very limited movement available. Better with a WA bellows though. I would expect the 75mm lens will give you a touch more room to play with. Also, you may (as I do) have to tilt backwards and plumb the front standard to get focus to infinity. Looks a bit odd, but it works for me.
/Frank

[Former Member 27732]

Forgot to mention, too that you will probably need to use some base tilt to keep the camera bed out of the picture, if you are exposing a full frame. This is less of a problem if you use a 6x12 back.

[Jim Cole]

Frank,

Thanks for the info and tips. Anything you don't like about your SV45Ti? What's the longest lens you use?