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05-23-2012, 05:53 AM   #46
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QuoteOriginally posted by RioRico Quote
That sounds about as tricky to use as my Schneider Betavaron. Do you have pics of the lens?


* A screw-on device, neither lens nor adapter, more like half a periscope. It's for shooting a right angles to where the lens is pointed, and about as disconcerting to use as a waist-level finder. This is a cheap 'spy' tool. But it's hard to be stealthy when you're aiming into a wall while the subject is off to the side.
Ah yes the right angle finder never understood that one

05-23-2012, 06:36 AM   #47
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Good Morning Rio
For your question here is the old Sun Zoom Macro 1:3.5 39~90mm
https://www.box.com/s/14414d46c89dcb5bef43
Build quality is like optical lab grade and the macro ring actually moves the mount relative to the lens.
(like focussing a prime lens)
I have to see how distant the macro focus can be used with the zoom section set at infinity

Here is the Kodak Ekton which has a macro ring of similar design, showing my home made mount and the added hyperfocal numbers I use on M4/3
https://www.box.com/s/42fdef7efb767721e185
The Ekton at 12mm focussed with the Macro ring showing the deep DOF at any aperture
https://www.box.com/s/813ec0425fa31f53636e

Compared to the SMC Pentax-A 1:1.4 50mm zoomed with the feet and focussed at f/2.4 for (to me) a more natural DOF.
https://www.box.com/s/284aa63da33b2d735646
05-23-2012, 07:49 AM   #48
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QuoteOriginally posted by wombat2go Quote
Good Morning Rio
For your question here is the old Sun Zoom Macro 1:3.5 39~90mm
https://www.box.com/s/14414d46c89dcb5bef43
Build quality is like optical lab grade and the macro ring actually moves the mount relative to the lens.
(like focussing a prime lens)
I have to see how distant the macro focus can be used with the zoom section set at infinity

Here is the Kodak Ekton which has a macro ring of similar design, showing my home made mount and the added hyperfocal numbers I use on M4/3
https://www.box.com/s/42fdef7efb767721e185
The Ekton at 12mm focussed with the Macro ring showing the deep DOF at any aperture
https://www.box.com/s/813ec0425fa31f53636e

Compared to the SMC Pentax-A 1:1.4 50mm zoomed with the feet and focussed at f/2.4 for (to me) a more natural DOF.
https://www.box.com/s/284aa63da33b2d735646
Interesting. It's like having a built-in helicoid extension tube. Pretty handy. These are K-mount lenses?
05-23-2012, 08:24 AM   #49
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DesignOs:
The Sun Zoom is a pk mount ( it looks like specific brand mounts were screwed onto the lens like the Tamron adaptall)
The Kodak Ekton is an old NASA cine lens with a mount I could not identify by searches and a register near 33mm probably for 16mm film or an early digital sensor around 16mm.
So I machined an adaptor for the Kodak to the M4/3

With all this messing around i have learned that accurate register is critical for sharpness of a modern zoom lens, whereas it is not so critical for a prime. Maybe that is partially why we see reports of "soft' zooms on the forum.
These old zooms with the macro ring allow correction of the register in + direction.

On the M4/3 adaptors I made, I put internal shim adjustment using rings of cooking parchment to fine trim the register.

05-23-2012, 08:28 AM   #50
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QuoteOriginally posted by eddie1960 Quote
Ah yes the right angle finder never understood that one
Not a RA finder -- it doesn't clip onto the VF. Rather, a RA deflector -- it screws onto the front of the lens. Hold the camera up to the eye, facing towards somewhere, but actually shoot at 90 degrees. So the camera+lens seems to be aimed one way, but ah, it's stealthy! Or lame.
05-23-2012, 08:38 AM   #51
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QuoteOriginally posted by RioRico Quote
Not a RA finder -- it doesn't clip onto the VF. Rather, a RA deflector -- it screws onto the front of the lens. Hold the camera up to the eye, facing towards somewhere, but actually shoot at 90 degrees. So the camera+lens seems to be aimed one way, but ah, it's stealthy! Or lame.
Oh hell I remember those horrible things, a bloody silly idea (that made someone some money i'm sure)
05-23-2012, 10:52 AM   #52
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QuoteOriginally posted by eddie1960 Quote
Oh hell I remember those horrible things, a bloody silly idea (that made someone some money i'm sure)
If I admit to buying one, am I a pathetic luzer?
05-23-2012, 11:06 AM   #53
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QuoteOriginally posted by RioRico Quote
If I admit to buying one, am I a pathetic luzer?
I actually bought the fisheye (I was fevered I was on vacation, I had just left the Pub, there was a Lomo store right there......lucky all i bought was the fisheye I still want a horizon perfekt


05-23-2012, 12:32 PM   #54
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To the strange lens list I will add my Tele-Vivitar 85mm f/1.8, a T mount lens that is unbelievably soft wide open, but quite sharp with lovely colors stopped down. Too bad it is big and heavy with a fairly long MFD, such that I do not use it much despite a conversion to K mount.

I do not like big and heavy lenses much, and rarely use a telephoto. So it is a fair bet I will never buy a DA 60-250. But who knows, with LBA in the house!
05-23-2012, 01:31 PM   #55
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QuoteOriginally posted by RioRico Quote
If I admit to buying one, am I a pathetic luzer?
Don't worry Rio, you'll always be my kind of loser. (I have one too, though I had happily forgotten. Don't think I ever took any pictures with it. Or I hope, at least.)
05-24-2012, 09:22 AM   #56
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I have a few “odd” Pentax lenses that took a bit of time to figure out how they work:

- K28/3.5 Shift
- K85/2.2 Soft
- 67 100/4 Macro with “Life Size” converter.

But the “weirdest” to me coming from a SLR background, is my Pentax 67 165/4 Leaf Shutter lens. I’m still scratching my head over this one.

Phil.
05-24-2012, 09:54 AM   #57
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QuoteOriginally posted by gofour3 Quote
I have a few “odd” Pentax lenses that took a bit of time to figure out how they work:

- K28/3.5 Shift
- K85/2.2 Soft
- 67 100/4 Macro with “Life Size” converter.

But the “weirdest” to me coming from a SLR background, is my Pentax 67 165/4 Leaf Shutter lens. I’m still scratching my head over this one.

Phil.
Those two K lenses are very interesting. They can be had on the used market, but not cheaply.
05-24-2012, 10:01 AM   #58
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QuoteOriginally posted by Designosophy Quote
Those two K lenses are very interesting. They can be had on the used market, but not cheaply.
yep, I saw the 28 shift at a local shop the other day. very nice but i kept away - though it was priced lower than the average price paid in the reviews (there are other more important lenses on my list first)
the 85 soft comes up for less than most of the other 85s. great lens on film for portraits not sure on digital.
05-25-2012, 12:44 AM   #59
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If anyone in the UK wants an 85 soft, there's one in a shop in Bath for £299.
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