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90mm f6.8 Wollensak Rapax

 
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peter k



Joined: 26 Dec 2009
Posts: 167
Location: Sedona Az

PostPosted: Mon Aug 13, 2012 2:30 am    Post subject: 90mm f6.8 Wollensak Rapax Reply with quote

The shots I have taken with lens, do not seem to be in tight focus. The shots are landscape shots, taken at f11 or f16.

The question I have, being a 90mm, f6.8, would it make any difference to shoot with a more open aperture?
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Dan Fromm



Joined: 14 May 2001
Posts: 1885
Location: New Jersey

PostPosted: Mon Aug 13, 2012 5:37 am    Post subject: Reply with quote

How do you focus?
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peter k



Joined: 26 Dec 2009
Posts: 167
Location: Sedona Az

PostPosted: Mon Aug 13, 2012 2:30 pm    Post subject: Reply with quote

With this lens off the Ground Glass... the last several shots I used a 10x loop.
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45PSS



Joined: 28 Sep 2001
Posts: 3219
Location: Mid Peninsula, Ca.

PostPosted: Mon Aug 13, 2012 5:49 pm    Post subject: Reply with quote

What tripod? What head? Leaf shutter or Focal Plane shutter?
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The best camera ever made is the one that YOU enjoy using and produces the image quality that satifies YOU.
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peter k



Joined: 26 Dec 2009
Posts: 167
Location: Sedona Az

PostPosted: Mon Aug 13, 2012 7:48 pm    Post subject: Reply with quote

Yep on a very sturdy tripod, Bogan 3046... leaf shutter...

What Head?
The one that is lose on the shoulders, but ur talking about something else.. give me a clue please.

Ya.. know.. being a wide angle, do I need to fire with a cable release?
No sign of fingers in pictures though, and its at a minimum of f16 @ 125, somethings f11 @ 250.
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45PSS



Joined: 28 Sep 2001
Posts: 3219
Location: Mid Peninsula, Ca.

PostPosted: Mon Aug 13, 2012 8:10 pm    Post subject: Reply with quote

Quote:
The one that is lose on the shoulders,

That's a shoulder separator.

Quote:
but ur talking about something else.. give me a clue please.

That doodad that is attached to the top of the tripod that the camera mounts to.

Quote:
Ya.. know.. being a wide angle, do I need to fire with a cable release?

I always use a cable release when shooting from a tripod.

See http://graflex.org/helpboard/viewtopic.php?t=6369 for a clue why.

Take it away Dan!
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1banjo



Joined: 16 Nov 2008
Posts: 478
Location: kansas

PostPosted: Mon Aug 13, 2012 8:55 pm    Post subject: Reply with quote

Hey peter
any time you are at a slow shutter speed ( thats anything
slower a 125th) you should us a cable to tip it


Ries Tripod I was looking at there sit they say that wood
does not have any VIBRATION to it as does a tube tipe do!
as I have never thought it BUT out doing water fall shots
shots some at slow shutter speed they are not SHARP using
a Bogen 3020! as the air mite have a sonicwave in from the
water fall thrugh the air make the Bogen have a VIBRATION???!!!

so how I have 5 Bogens that I will stop using out side!!
less likey to get VIBRATION indoors so I will still us then
But for out doors I am going to use one of my wooden one
I have a Craig Thalhammer wood & metal and now I have
a Ries that I just got on Friday
Craig Thalhammer is said to be realy good BUT now that I
have the Ries its a 100% better than that Craig Thalhammer
and that just in the wood then the Craig Thalhammer has metal
tubes for the down tubes

now as to the heads I do like & use the Bogen 3047 head
on my tripods
Now as to the Head lose on the shoulders I don't see any help
that we can do! LOL LOL!!
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Dan Fromm



Joined: 14 May 2001
Posts: 1885
Location: New Jersey

PostPosted: Mon Aug 13, 2012 9:44 pm    Post subject: Reply with quote

peter k wrote:
Yep on a very sturdy tripod, Bogan 3046... leaf shutter...

What Head?
The one that is lose on the shoulders, but ur talking about something else.. give me a clue please.

Ya.. know.. being a wide angle, do I need to fire with a cable release?
No sign of fingers in pictures though, and its at a minimum of f16 @ 125, somethings f11 @ 250.


Head? Tripod head, not the old gray one. I've had problems with heads coming just a little bit loose from the platform, have learned to check them and, if the tripod platform has 'em, the locking screws that bear on the head's base.

The 90/6.8 Wolly can be focused at f/6.8, should be shot stopped down. Wolly says at least to f/11, I think -- have never had one so can't say for sure -- at least to f/16.

FWIW, I never got a sharp shot with the 65/6.8 Wolly I used to have. Other folks here have said good things about theirs, so I prob'ly had a bad 'un. If you get sharp shots with your other lenses, your 90/6.8 may be a bad 'un too.

I always blame the operator -- that's me -- first when a lens gives me poor results, always try again and check hard to make sure that I'm doing what I should be. Every once in a while the problem is the lens, though.
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peter k



Joined: 26 Dec 2009
Posts: 167
Location: Sedona Az

PostPosted: Tue Aug 14, 2012 2:15 am    Post subject: Reply with quote

Were to begin... oh yeah.. tighten up shoulder separator.. CLASSIC! ... ah that feels better.
Next..

One of the first things I checked to be sure it was tight. Tripod head is large, and locked in place, also I have a large 3/16" rubber 'washer' that's about 1.5" across, that I made to make a tight grip. Got to use a pair of pliers to get the dang thing off, when I want to set the speed down on the table.

Quote:
... the air mite have a sonicwave in from the
water fall thrugh the air make the Bogen have a VIBRATION???!!!

hmm.. no water around here where I was shooting for miles, but maybe it's the Vortexes.. (Sedona AZ stuff)
Quote:

The 90/6.8 Wolly can be focused at f/6.8, should be shot stopped down. Wolly says at least to f/11, I think

When I was looking into buying this off e-bay I checked out info, and I recall there was something said to that effect... but forgot about it. Then checking shooting notes, noticed it was all at small apertures. That's why the question, I looked again about the lens, but could find nothing that substantiated that until you mentioned it.

Ok.. I got to order some more film.. and will do a test with the 90mm at different f stops and see if that's it.

thanks guys...
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1banjo



Joined: 16 Nov 2008
Posts: 478
Location: kansas

PostPosted: Tue Aug 14, 2012 2:48 am    Post subject: Reply with quote

hey pet
with any lens wide open is to focuss the sharpest aperture
is 3 stops down from wide open
BUT not the best DOF the smalls apertures give the best DOF
and hyper focuss is better
with LF you need a DOF / hyper focuss chart Now for that go to

http://www.dofmaster.com/dofjs.html
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peter k



Joined: 26 Dec 2009
Posts: 167
Location: Sedona Az

PostPosted: Tue Aug 14, 2012 2:30 pm    Post subject: Reply with quote

Yes, I'm aware of DOF, and always try to use it, where necessary for shot composition, but never knew of the term 'hyperfocal distance', or it's use.

Thanks for the link..

With my old classic manual 35mm Nikon's, (which moan for attention of late, haven't even finished the roll I started in spring last year) all one had to do was press a button on the lens, if there was a question about DOF.

It's all a bit different with the speed...
The term, legitimate photography, comes to mind, especially as we learn skills in developing color negatives.
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1banjo



Joined: 16 Nov 2008
Posts: 478
Location: kansas

PostPosted: Tue Aug 14, 2012 9:15 pm    Post subject: Reply with quote

hey pet
you can do a download and then make up hand wheels for your lens
so you can take them with you

you can set up the wheel how you like then. print 2
I cut it & LAMINAT them a thum tack in the center
them I am good to go
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peter k



Joined: 26 Dec 2009
Posts: 167
Location: Sedona Az

PostPosted: Wed Aug 15, 2012 2:08 am    Post subject: Reply with quote

Quote:
you can do a download

From where... ???
Or are you talking about making them from scratch, using information supplied by the link?
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1banjo



Joined: 16 Nov 2008
Posts: 478
Location: kansas

PostPosted: Wed Aug 15, 2012 2:22 am    Post subject: Reply with quote

yes

http://www.dofmaster.com/dofjs.html

then click

DOFMaster for Windows®

you get a download

then you get DOF Master link

there you can make it up as to what lens you have under LF
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peter k



Joined: 26 Dec 2009
Posts: 167
Location: Sedona Az

PostPosted: Wed Aug 15, 2012 2:36 am    Post subject: Reply with quote

Sun of a gun... what a sight..

Thanks Banjo..
Made an ordered today, including film .. should get it in a couple of days.. I'll have to make one of these things up.
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