Good video, but consider adding more emphasis to "I don't touch the alignment screws". Something like the emphasis that A-P puts on it: "NEVER, EVER TOUCH THE ALIGNMENT SCREWS!!! These are the screws that are inset quite a bit." Also, A-P publishes a formula for making your own lens cleaning solution, with instructions on how to clean, which mirror the technique used in this video: Astro-Physics Lens Cleaning Formula & Instructions: "To make 16 oz of solution: 3 parts distilled H2O (12 oz.) 1 part 90+% Isopropyl alcohol (4 oz.) (drug store) 1 drop biodegradable dish soap (online backpacking store) - Blow and brush the optic with an air bulb and camel hair brush before cleaning. You want to remove any loose particulate matter that may be stuck to the lens. Note: Do not use “Canned Air” spray, as it can leave a damaging residue on the lens. - Combine the above ingredients and spray onto white Kleenex. -Swipe the dampened Kleenex across the optic applying only the weight of the Kleenex. Do not swirl the Kleenex…just a swipe straight across the lens. - Use a new sheet of Kleenex for each swipe. - Be sure to use Kleenex with no additives and no color print. - Perform a couple complete cleanings as described above. - Do not puddle solution on the lens…you do not want it flooded with liquid. - Spray the Kleenex, not the lens. - If you have a stubborn spot, put saliva on a finger and gently rub the spot until it is gone. Once the spot is gone, be sure to remove the saliva using the above cleaning formula. - Perform a last cleaning and blow off any “Kleenex dust”. - It is not necessary to concern yourself with any lens streaking, though if you wish, you can do a couple swipes with acetone. Again, spray it onto the Kleenex, not the lens. * Important: If you use acetone, you must be careful to not let it touch any painted surface (either the outside of the tube or the flat black coating)." But good video.
@AnthonyAyiomamitis
13 жыл бұрын
Thanks Scott!
@wshammo
12 жыл бұрын
Sorry I didn't reply to your question almost a year ago. Oops. My refractor resides in a location that has pollen counts in the thousands. The pollen settles on the lens at night during imaging and I think that turning off my dew heaters too early after imaging allowed condensation to form on the lens. I now leave the dew heaters on several hours in the morning until it dries well. Pollen is still an issue, but it doesn't seem to cake on the lens as badly.
@wshammo
12 жыл бұрын
I could do that and have considered it, but there are a few logistical issues that have led me to jettison the idea, at least for now.
@wshammo
13 жыл бұрын
Thanks, I appreciate your comments. However, the manufacturer as well as the instructions from Baader describing exactly what I did in the video. So...if you have a problem with that, take it up with the manufacturer of the lens, master telescope maker Roland Christen of Astro-Physics.
@mar504
7 жыл бұрын
When you reinstall the lens how do you make sure it's lined up correctly with those 3 pairs of push/pull bolts? My bolts become lose during shipment, it "seems" ok but I want to get the best possible performance out of it.
@wshammo
7 жыл бұрын
mar504 there are 2 sets of screws, one set is for aligning the lenses, i.e. For collimation. I do not adjust those at all. The second set is for removing the lens cell from the tube. If your telescope is an AP, contact them regarding alignment. Thanks.
@mar504
7 жыл бұрын
Yes, the second set for removing the cell is what I mean. When you put the cell back in, how did you ensure it was perfectly lined up to illuminate the middle of your imaging sensor? My scope is not an AP (maybe one day!)
@sarastro84
7 жыл бұрын
I had left my Refractor in a place that I assumed would be OK. When I came back months later there seemed to be a mould growth between the two lenses. I'm an idiot and thought hmmmm better kill that growth straight away. Took the lens apart used methylated spirits and rinsed it with distilled water. The lenses look ok to me now but now I'm not sure if I put them in correctly as both had a concave middle and not sure which way to put them in. I've only brought it out one time since and I thought the moon was fairly foggy but hadn't allowed it to get to ambient temp as was in a hurry. Any idea what way the lenses go in? And I know collimation is needed for some scopes but am I right in thinking not this one?
@michaelpatrickmilligan
4 жыл бұрын
sarastro84, I see your idiot and raise you: I took the three lens triplet out of my AP 130 EDT to clean it as well. When I put it back, it was foggy, ans stars looked badly misshapen. It turns out I had tightened the retaining ring far too much. Even though we don't see it, pressure causes stress lines in lenses that throw the optics way off. It should only be just tight enough that the lens assembly doesn't rattle/move at all - no tighter. Once I did that, it made the optics crisp, clear and perfect! I now have the most unbelievable views, better than I imagined. Hope this helps.
@dannysastronomy6894
3 жыл бұрын
@@michaelpatrickmilligan What!? The plastic ring that threads on top of the cap into the lenses..? I have already taken my double lens out and try cleaning them. Good results, because they were very smudgy and had a strong scratch mark on it fairly thick to. So, I will take them out again wear plastic gloves clean them, and I will do your method.
@michaelpatrickmilligan
3 жыл бұрын
@@dannysastronomy6894I failed to answer your two questions and failed to ask you an important question: 1 - Once the lenses are together as a unit, the convex/most convex side points toward the front. 2 - Collimation is common with reflectors but not refractors. Your lenses will be collimated if they are seated properly: flat against the ring rather than with one side sligtly higher than the other. My question is, are they oil-spaced or air-spaced? Each lens of the objective has a small but important distance between itself and the adjoining lens. Ther are two possible ways they use tof maintaining this distance: Oil-spaced objectives use a special type of oil that naturally keeps the lenses separated the correct distance. "Air-spaced" objectives use rings to keep the lenses separated the proper distance. Mine is an "oil-spaced" triplet, so I obviously did not take the lenses apart from each other. Of the six surfaces, I can only clean the front and back. If I get mold growth on the inside, I'd have to snd it back to Astro-Physics Co to remove. If yours is an air-spaced doublet, then you're likely cleaning all four sides. The separator will be a ring that sits around the edge, between the two lenses. Then that unit goes in the telescope with the convex side, or most convex side, toward the front. Hope this helps. Michael Milligan Fyi, if you have any other questions or want to discuss it more, feel free to email me at: michaelpatrickmilligan3@gmail.com. Mike
@dannysastronomy6894
3 жыл бұрын
@@michaelpatrickmilligan yes, mine is an air-spaced doublet. I already cleaned all four sides and installed them correctly. It took me a while to do it properly as I didn't mark them. However, I found a video that has the same lens setup as mine. My scope is a Celestron Inspire 100az if you need to know.
@Dr.Pepper001
5 жыл бұрын
Does anyone know what the lead time is on AstroPhysics scopes these days?
@thephotoyak
4 жыл бұрын
For a 130 I got on the list in 2011 and got notice in 2018. The new 92mm the list was created April 2018 and only stayed open 2 days IIRC. People are getting their scopes now. If you aren't on a list right now you'll probably never get a new one, Roland seems to be winding down scope production.
@jimzeleny7213
3 жыл бұрын
@@thephotoyak I think the 6" list goes back to November 1998. So you can pretty much forget it if you want one that size.
@thephotoyak
3 жыл бұрын
@@jimzeleny7213 I don't think he will ever make another refractor over 5". Maybe, but it seems like he is winding down.
@davidhubach5528
3 жыл бұрын
i could do that with out removing the lens
@Jules7892
13 жыл бұрын
Sir.Don't you USE your LENS Telescope CAPS to Protect your Achromatic Refractor and Parabolic Reflector, Schmidt Cassegrain, Maksutov Cassegrains? You DO NOT use your Bacteria Mouth Enzymes to Clean Delicate Lenses or Mirror for Telescopes,YOU USE PROFESSIONAL STERILE LENS TISSUE & LENS SPRAY Available at your Photographic Retail Digital Camera Retailer. Wash hands 3 Times Before Handling Either Lenses or Mirrors for Telescopes, USE SURGICAL PLASTIC GLOVES AVAILABLE IN ALL HAIR COLORING KITS!
@Jules7892
13 жыл бұрын
Using Professional Lens Tissue & Lens Spray available at your Digital Photographic Camera Retailer & Sterile gloves or 3 times thouroughly Washed Hands is the Most Scientifically Verified Sterile Method of Cleaning Multi-Coated Lenses and Parabolic Telescope Mirrors.This Video has a major problem, DO NOT USE YOUR MOUTH BACTERIA Enzymes on Any Lenses either Telescopes or MicroScopes.USE YOUR PROFESSIONAL LENS-MIRROR SPRAY then LENS TISSUE Sold at your Digital Photographic Retail Stores.Thank You!
@happyjack8952
7 жыл бұрын
Jules. Verne. a lil bit a spit'll never hurt it
@CheekyMonkey1776
7 жыл бұрын
You aren't really using Kleenex are you?
@wshammo
7 жыл бұрын
Cheeky Monkees Yes!
@wshammo
7 жыл бұрын
Cheeky Monkees I should have mentioned the instructions from the manufacturer said to use lotion free Kleenex.
@CheekyMonkey1776
7 жыл бұрын
Why not lens paper?
@CheekyMonkey1776
7 жыл бұрын
I would think Kleenex would leave a lot of paper dust.... Although Kleenex would be a much cheaper option. Hmmmmmm...
@CheekyMonkey1776
7 жыл бұрын
BTW, Beautiful telescope. That front objective lens looks huge in the video. It must be heavy.
@narcovice
5 жыл бұрын
pleanty wasted tissues
@Jules7892
13 жыл бұрын
Using Professional Lens Tissue & Lens Spray available at your Digital Photographic Camera Retailer & Sterile gloves or 3 times thouroughly Washed Hands is the Most Scientifically Verified Sterile Method of Cleaning Multi-Coated Lenses and Parabolic Telescope Mirrors.This Video has a major problem, DO NOT USE YOUR MOUTH BACTERIA Enzymes on Any Lenses either Telescopes or MicroScopes. USE YOUR PROFESSIONAL LENS-MIRROR SPAY then LENS TISSUE Sold at your Digital Photographic Retail Stores.Thank You!
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