daz69 Posted February 17, 2011 Share Posted February 17, 2011 I have a PCC225-2 Xvision 480 TVL camera body and a XL0409A-PRO 4.0 TO 9.0mm lens that has an DC auto iris. So far so good, but I can't see a way of securing the lens at the desired rotation - what I mean is the lens screws on fine, but when tight the galvanometer is pointing downwards and the 'manual' (not great translation) specifies it should be horizontal to the left front of the camera body - that is how I see complete cameras when looking at complete kit pictures on the web. The cameras I've played with before have had grub screws in the body that locate in a groove in the lens - easy. Is there something I'm missing or will it not hurt to have the galvanometer pointing downwards? The camera body did come with a plastic screw mount that screws into the body and then the lens screws into that, but that only serves to increase the distance between the lens and the body by 3 or 4 mm and doesn't get over the problem. Thanks for your help. Link to comment Share on other sites More sharing options...
arfur mo Posted February 17, 2011 Share Posted February 17, 2011 The adapter I suspect is for 'C' and 'CS' mounted lens. have you tried to set the lens, then use the back focus? Arfur If you think education is difficult, try being stupid!!!! Link to comment Share on other sites More sharing options...
daz69 Posted February 17, 2011 Author Share Posted February 17, 2011 Thanks for the quick reply, I can focus it fine as it is, the only issue is that the lens is vertical not horizontal. The back focus just move the ccd backwards on a spring loaded plate. Link to comment Share on other sites More sharing options...
PeterJames Posted February 17, 2011 Share Posted February 17, 2011 Thanks for the quick reply, I can focus it fine as it is, the only issue is that the lens is vertical not horizontal. The back focus just move the ccd backwards on a spring loaded plate. Maybe you need an O ring Link to comment Share on other sites More sharing options...
daz69 Posted February 17, 2011 Author Share Posted February 17, 2011 There was nothing like that supplied, but I like your thinking - I was about to get the PTFE tape out. I guess the real question is will it cause any problems to have the auto iris bulge pointing down instead of left? Link to comment Share on other sites More sharing options...
PeterJames Posted February 17, 2011 Share Posted February 17, 2011 There was nothing like that supplied, but I like your thinking - I was about to get the PTFE tape out. I guess the real question is will it cause any problems to have the auto iris bulge pointing down instead of left? Is it going in a housing? I could see a problem if it was sitting on a heater or something, but otherwise I cant see a problem. Link to comment Share on other sites More sharing options...
daz69 Posted February 17, 2011 Author Share Posted February 17, 2011 Yes its just in a normal external housing, lots of room, no heater. I didn't know whether something in the auto iris didn't like being upright, I think I'll just wack it in as it is and see how it goes. Thanks for your help anyway. Link to comment Share on other sites More sharing options...
arfur mo Posted February 17, 2011 Share Posted February 17, 2011 lol old school or what? i'd go with the tape if no spacer, slightest tap and focus is lost on a loose thread. Arfur If you think education is difficult, try being stupid!!!! Link to comment Share on other sites More sharing options...
sixwheeledbeast Posted February 17, 2011 Share Posted February 17, 2011 Is there something I'm missing or will it not hurt to have the galvanometer pointing downwards? The camera body did come with a plastic screw mount that screws into the body and then the lens screws into that, but that only serves to increase the distance between the lens and the body by 3 or 4 mm and doesn't get over the problem. Thanks for your help. There is no up or down to the lens really I have seen them at all orientations. When you mount the lens the thumb screw's for focusing need to be accessible. To do this the lens normally has about 340 degrees "slip" at the end of it's thread. Mount the lens till it stops, adjust the lens anti-clockwise until the lens is the correct orientation to focus. Then focus. The 5mm spacer ring is provided for when you mount a C-Mount lens to a CS-Mount camera. The flange focal distance of CS-Mount lens is 12.5mm which is 5mm shorter than the C-Mount lens. CS-Mount camera is always compatible with C or CS Mount lens, C-Mount camera is not compatible with CS-Mount lens. Most cameras are CS-Mount cameras and include a C-ring. Link to comment Share on other sites More sharing options...
daz69 Posted February 18, 2011 Author Share Posted February 18, 2011 Mount the lens till it stops, adjust the lens anti-clockwise until the lens is the correct orientation to focus. Then focus. I was expecting something like that but the mount will not turn in relation to the body of the lens, I've even tried with plastic-faced pliers on the thread - anymore and I'll just have bits of lens. Anyway its nice and tight orientated downwards but that leaves the thumb screws at the top which is the most accessible place for where its going. Quick, friendly forum, I have no doubt I will be talking to you again. Link to comment Share on other sites More sharing options...
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