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10-15-2011, 01:59 AM   #1
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lens focus problem

hi am saravanan ffrom mumbai
am new to this forum. i own honeywell pentax spotmatic slr camera
am using it for past one year. recently i got a problem in focusing.

wen i turn the focus ring in to infinity its not showing focus its focusing only some 10 t0 15 feets.background is out of focus. i dont know wats the problem
pls someone explain me.

last month i gave it to lens cleaning . i think they mounted the lens improperly. is the problem is repairable
pls reply frnds

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10-15-2011, 03:07 AM   #2
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Well, the obvious solution would be to take the camera back to where you had it cleaned, show them the problem and have it solved.
10-15-2011, 08:57 AM   #3
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The problem comes from the "cleaning" person not securing the screws properly to lock the focus ring to the "helicoid" or focusing barrel. As kcobain1992 suggest, that correction is the responsibility of the repair shop. This should be first move to fix. The method is to go back under the face ring and reset the Infinity and lock the screws down with a locking liquid seal. This is not a project if you are not comfortable taking apart your gear.
10-15-2011, 11:13 AM   #4
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thanks for u reply frnds

10-17-2011, 12:12 PM   #5
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That is an interesting camera for a Mumbai resident to own. It is a Honeywell Spotmatic IIa, which was a USA-only model. There was never a version of this camera that bore the Asahi name on the prism.

The little round sensor on the front, near the rewind crank is a light sensor that worked with certain of the Rollei-made, Honeywell-imported Strobonar flash units. I believe that the Strobonar 772 and 882 flashes worked with that sensor. I believe that there were a couple of other Strobonars that did, as well.

I don't know if Rollei ever sold those models under their own name, outside the US. If so, you might be able to find one, either in India or Europe.
10-17-2011, 12:17 PM   #6
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QuoteOriginally posted by noblepa Quote
That is an interesting camera for a Mumbai resident to own.
Hmm, how about EBAY?
10-19-2011, 09:55 AM   #7
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So.. MysteryOnion. I have the same problem with one of my lenses. It's a Pentax-M 50/1.7.. Is this the screw you are referring to? If so, what exactly is the procedure?

Thanks in advance
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10-27-2011, 02:44 PM   #8
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thank u frnds i got repaired my slr ,

10-28-2011, 06:03 AM   #9
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QuoteOriginally posted by Ruffinit Quote
So.. MysteryOnion. I have the same problem with one of my lenses. It's a Pentax-M 50/1.7.. Is this the screw you are referring to? If so, what exactly is the procedure?

Hi Ruffinit,

Yep, the screws that are with washers. Before setting them, do utilize a tripod and if you have one, a viewfinder magnifier... I've used also a piece of "3m - Magic tape" stretched from 'film rail to film rail', not the 'film guides' Then use a 10X loupe to see if in is matching the viewfinder. Point the camera somewhere out-there... well beyond 500 feet.

Hope this step-by-step reads right:
1. You will need to loosen all three screws that secure the focus ring first... no need remove.
2. Spin the focus ring to a closer distance... maybe about 12 feet.
3. Tighten one screw to give you focus control of the helicoid/lens focus barrel again.
4. Spin the focus ring until it looks like you are at infinity, but don't over rotate past this point or you will damage the threads on the helicoid.
5. If so far... all is well and you have found roughly infinity, note the distance scale of the focus ring and chances are you are short the infinity mark.
6. If so far... close, but not there or it seems you have a closer than where you start, repeat from 2.
7. Gently loosen the screw of the focus ring and spin it to the infinity mark.
8. Tighten the screw and slowly rotate to a new position that is closer and rotate back to infinity... is it still good?
9. Here is where you can try the tape trick... others have used a focusing screen secured to the rails, but that is only if you have a spare.
10. Still looks good? If no, repeat from 2. If yes, tighten all screws and optional... thread lock.

Last edited by MysteryOnion; 10-28-2011 at 06:58 AM.
10-28-2011, 01:59 PM   #10
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Thanks much! I'll give it a try. I may not be quick about it, but I'll report back.
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