Oly XA RF patch contrast

Robin Harrison

aka Harrison Cronbi
Local time
2:35 AM
Joined
Apr 12, 2005
Messages
446
Location
London, UK
I still rate the XA up there as one of the best cameras ever designed. A wonderful (mini) beast. From time to time I come across mine in the camera drawer, think I should put a roll through it, but then look through the VF and am reminded about the RF patch. The copy I've got, indoors at least, does not 'snap' like a good RF should.

I'm wondering - should I pick up another copy to compare? I realise that the mirroring in a RF mechanism can degrade over time. Do XAs suffer from this? Are some XAs clearly superior to others in this regard? It so, it seems there is no objective way for a seller to relay this.
 
XA rangefinder patch contrast

XA rangefinder patch contrast

I own several XA's and the patch contrast does vary; all have faded considerably from what I assume was acceptable when new. Still, even with the worst of my lot, I am able to take good pictures. I've also learned:

1. These cameras can be cleaned. Top plate removal is not hard and can give you perhaps a 25% improvement in contrast, once you clean all the reflective and transparent surfaces in the RF path. Here's a set of instructions: http://www.rangefinderforum.com/forums/showthread.php?t=137072

2. You can, either before or after cleaning, apply the tape/sharpie trick to get an increase in contrast. Here's the hack: http://rick_oleson.tripod.com/index-165.html

Good luck with yours!
 
I own several XA's and the patch contrast does vary; all have faded considerably from what I assume was acceptable when new. Still, even with the worst of my lot, I am able to take good pictures. I've also learned:

1. These cameras can be cleaned. Top plate removal is not hard and can give you perhaps a 25% improvement in contrast, once you clean all the reflective and transparent surfaces in the RF path. Here's a set of instructions: http://www.rangefinderforum.com/forums/showthread.php?t=137072

2. You can, either before or after cleaning, apply the tape/sharpie trick to get an increase in contrast. Here's the hack: http://rick_oleson.tripod.com/index-165.html

Good luck with yours!

Ah, super tips, thanks! Will try out the second one first (the top plate removal looks a bit dangerous for my fat fingers with those wires everywhere!)
 
I have one I am trying to sell over on apug. I took a number of good photos over the years with it when my eyes were better. I resorted to the little square of tape on the window and that helped, but recently picked up a 35RC. What it gives up in portability, it makes up in RF contrast.
 
Zone focus is my solution too, works fine. I think I had mine open at some point and decided not to try to get into the finder block, it looked too involved at the time.
 
I have my XA cleaned by myself, it improved RF double images from almost invisible to visible somehow 🙂

But even at f2.8 it isn't difficult for zone focusing.
 
I have my XA cleaned by myself, it improved RF double images from almost invisible to visible somehow 🙂

But even at f2.8 it isn't difficult for zone focusing.

Hi,
How easy or difficult is it to do a DIY clean-up of the viewfinder/rangefinder? I have two XA's which are useable but, on both, the RF patch probably could be brighter.
 
The main thing to know is that opening it is different than the XA2, there's a screw under the red button, which is just a layer of red plastic glued to the button mechanism. You have to peel it off to get at the screw. It's not the screw on the little black piece, it's the other one. (None of this is true of the XA2 though.) And don't lose the cylindrical bearing for the sliding cover when you take it off.
 
Mine has a a bit of sharpie tape on the VF as suggested here. I've seen better RF patches and worse .. it's usable although I prefer to use that thing in zone focusing (and lately it has not much use since the Contax T2 is my new pocket-able)
 
The main thing to know is that opening it is different than the XA2, there's a screw under the red button, which is just a layer of red plastic glued to the button mechanism. You have to peel it off to get at the screw. It's not the screw on the little black piece, it's the other one. (None of this is true of the XA2 though.) And don't lose the cylindrical bearing for the sliding cover when you take it off.

Definitively need to be careful of that, but a piece of wire the same diameter can be cut and polished as a replacement. I once did that for a friend of mine.

Robin Harrison - Thanks for those links again. I had forgotten about them.
 
Thanks for the links on getting the contrast up. I just bought a new (to me) XA this morning. It's in GREAT condition, but the VF is very dim (much dimmer than my other, broken, XA). It's only been used for one holiday by this lady and it has been sitting in a box for the last 25 years (and it looks its part).
Anyway, I can't imagine the innards of the camera are dirty. I've had quite some experience with XA's and have the confidence to clean it, but the link provided only shows how to open the XA (something I already knew), not how and what parts to clean or am I missing something?
I'll definitely try the tape-trick though!

EDIT: Don't know what I was thinking when I looked through the viewfinder earlier on, but the rangefinderpatch is actually very clear. Maybe I should've paid more attention. Oh well. Happy me! Immaculate XA for 20€ 🙂
I tried the tape-trick, but it didn't noticably improve the RF patch contrast.
 
Ah, super tips, thanks! Will try out the second one first (the top plate removal looks a bit dangerous for my fat fingers with those wires everywhere!)

The XA is different to the XA2!

There's a screw UNDER the red shutter button which has to be pried off cautiously.

DO NOT USE ANY LIQUID GLUE (super glue) to stick it back on later as that will totally mess up the shutter. Been there, done that!
 
Hi,

Thinking about it, I guess the RF will depend on semi silvered or surface silvered glass for the images and silver tarnishes and so do the other metals used. So no great surprises here. What it needs is replacement of the reflective coating surely? It's time and the polluted atmosphere to blame...

Regards, David
 
Back
Top Bottom