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About jeffwjz

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    Star Forming

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  1. Hi I have some filters that I no longer use. More photos are available, and prices include first class delivery. Skywatcher OIII filter £25 Celestron LPR filter vintage £30 Orion ultra block narrowband filter £70 Star analyser 100 £75 Seben CLR light pollution filter £15 Thank you.
  2. My Bresser AR127L has a broken focuser as I've realized recently. When I took the knob part of the R&P focuser for examination I found that the worm gear was badly worn out, and the focuser knob shaft was bent already. I'm wondering if anyone's got experience with replacing the worm gear part? I'm trying to contact Bresser as well to see if they are able to provide/sell any replacement parts. Thanks in advance.
  3. Hi all thanks for all the replies. As I played around it, I found that the top silver screw in first pic is for tension and bottom is for locking. I had to tighten the tension screw really really hard to the focuser knobs can drive the tube. I disamble the focuser and found the mechanism opposite to the knobs has a ball bearing missing. I suppose this is the issue so I ordered some replacement bearings.
  4. Hi everyone, I recently acquired a TAL 100RS, the optics are in great condition, however there is one issue - the focuser doesn't work. Basically when I rotate the focuser knob the focuser tube is not moving at all, and if I loosen the focuser locking screws I can just spin the knobs freely. I pulled out the tube, and I think the focuser is missing a part but I'm not sure which and not sure how to repair it. Can anyone advise? Thanks in advance.
  5. I'm looking to buy some second hand SX USB filter wheel accessories: - M42/T male adapter - M48 female adapter - 7x1.25" carousel I can also trade if you want the following: - M56 male adapter - M56 female adapter - 5x50mm unmounted carousel Thank you.
  6. jeffwjz

    8" bahtinov mask

    Looking for a bahtinov mask for 8" SCT!
  7. Ah ha I see. The previous owner is cheeky!
  8. Need to start stockpiling the label now!
  9. Really? If someone has done that he's done a great job, as there is no way I could tell the label was peeled off from somewhere else..
  10. I came across a skywatcher skymax 127 but with a "powered by TeleVue" label. Anyone knows the background of it?
  11. I have a question regarding testing the condition of a newly acquired camera. So whenever I purchase a new astronomical camera, it's quite normal to try to see if it works properly. Obviously the first "test" is to put in the power cord and see if it powers up and and if the cooling fan works. But in UK the weather condition isn't very ideal all the time so there is a large chance that I am unable to check the actual image quality of the camera for quite a while until the sky clears up. I'm wondering if there is a way to focus the astronomical camera at home (not sure how.. maybe using barlow lens?) so that I can at least use it as something similar to a normal webcam, and have some sensible images coming up on the laptop. In this way I can at least tell if there are anything seriously bad on the camera pixels, or if there are any cracks/scratches that are hard to spot by just looking at the camera. Any ideas?
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