awlfc
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Posts posted by awlfc
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Is the an eyepiece I can buy to make the image i see the right way up
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I've just bought the 200p skywatcher Dob solid tube. I thought about getting the Felx Tube but couldn't see the point in spending out the huge amount extra. I have bought a 2 extra eyepieces and a Barlow with the money saved and I'm still quids in.
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21 hours ago, Vondragonnoggin said:
Some places in Texas still have dark skies but the big cities in Texas are no different from light polluted big cities everywhere. Since you have a 2x barlow already and the very nice 25mm Plossl, you are getting a 12.5mm equivalent when using the 25mm in the barlow. You might try an eyepiece in the 14-17mm range. Barlowed would give 7-8.5mm equivalent with more eye relief than the current 10mm Plossl. I find the Skywatcher 10mm is a good eyepiece but do not like the short eye relief and prefer larger eye lens with longer eye relief. Barlows increase eye relief unless they are telecentric design power amplifiers (focal extenders). A good 17mm is a nice jump down from 25mm and should have adequate eye relief as well. For a next jump in magnification, an 11mm would be good. In a barlow it would be a 5.5mm equivalent.
Three eyepieces and a barlow giving you 25mm, 17mm, 12.5mm, 11mm, 8.5mm, 5.5mm magnifications. Plus your 10mm as well and 5mm with the 10mm in a barlow.
if the barlow has the lens element that unscrews and can be screwed directly on the bottom of an eyepiece barrel, it will give 1.5x amplification. So you have magnifications for the following focal lengths - 25, 17, 16.6, 12.5, 11.3, 11, 10, 8.5, 7.3, 6.6, 5.5, 5 millimeters
All out of 4 eyepieces (25, 17, 11, 10) and a 2x barlow
Another option would be to get a Televue 2.5x Powermate. Three eyepieces (25mm, 17mm, 11mm), a 2x standard barlow with lens element that can be screwed directly on the eyepiece for 1.5x, and a 2.5x Powermate will give you a very large number of magnifications. Focal lengths of 25, 17, 16.6, 12.5, 11.3, 11, 10, 8.5, 7.3, 6.8, 5.5, 4.4 millimeters.
All those and you never have to use the Skywatcher 10mm Plossl to get any of that. You can tuck it away in a drawer.
Ive copied and paste that into my notes. I'll start buying a few extras each pay day.
Last night it all come together and had some amazing views of Jupiter I could see the colour and band across it. My views of the moon blew me away. Just randomly pointing the scope around the sky and seeing thousands of stars.
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Hello I'm in Huyton about 10 minute drive from pex hill although I still haven't been to the astronomy club
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First night out with my score last night. Decent breaks in the clouds and with the 10mm eyepiece that come with the scope I could see and find everything I pointed it at. But when i put my BST lenses in all i could see was my eye lashes. What am I doing wrong and why is the twist thing on the BST an extra focuser
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I bet you have some good skies in Texas. I'm in Liverpool UK. Loads of light pollution here.
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7 hours ago, Louis D said:
A custom 8" Dob, a custom 15" truss Dob, an AT72ED, a 127 Synta Mak (Orion, I think), an ST80, and a PICO-6. I'd like to get a 120mm to 150mm ED refractor next (preferably with an FPL53 doublet).
That's some collection. Where in the world are you from.
Ive only just got my first scope been using 20x80 celestron binoculars for about 6 months csnt wait to get my scope out ots been cloudy since I got it. I now have 2 BST lenses 8 and 12 plus the 10 and 25.. I got with it plus a x2 Barlow that should keep me going for a while. My next purchase later on in the year will be an EQ mount
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What scope do you have, do you have a collection of scopes to.
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I'm debating pushing the buy button on a 8 and 12 mm BST and a Cheshire collimator.
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That's some collection. Do you get the same size eyepiece in different makes
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Think I'll go with the 8 now and get the 12 next pay day. Do you all stick with the same type of eyepiece or do you mix and match with different makes. Just seen skywatcher planetary eyepieces and they are about £10 cheaper than BST. This is a complicated hobby to start off in.
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In after good close ups of the moon that's why I thought the 8mm and a Barlow would give that. Would the 12 and the Barlow give good close ups of craters
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I have just recieved my scope and I have the standard 10 and 25mm eyepieces that come with it and a 2x Barlow. I am looking at getting an 8mm BST eyepiece I was wandering if this will be a good match for the scope and work well with the Barlow. I have read so much about focul length and scope speed I have over loaded my head and I'm more confused than before I started to read.
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I have removed it now and mirror looks very clean. Just need the clouds to foxtrot oscar so I can use the thing.
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I just positioned the camera in an angle to see down the tube. The doughnut looks centre by eye.
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I have the solid tube. It appears to have been a bit of glue or somthing put low pressure air near it and it dislodged
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The doughnut looks to be centre when I look down the scope. It's the small smudge next to the doughnut im concerned about . I'm going to use low pressure blast of air to see if it's just dust or junk from the factory
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I hope I like it. Dont know if I'll be gutted not having the tracking capability of the EQ mount. I'm the.most indecisive person you could imagine
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Well after an unexpected expense I had to hold of buying a scope. In the time I've had to wait I've done further reading and I've decided on the 200p Dob.
What eye peices should I buy for good close ups of the moon
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Thanks for all the advice. Looks like I'm going to go with 150p as it seems a good all rounder for a beginner.
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The 150p now comes with a 1.25/2-inch Crayford focuser from FLO is this a good addition
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What's it like for manually tracking an object though I can imagine it to be a bit tricky without any adjustments and just pushing it. Have you ever attached a camera to it.
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Would the 150p on the EQ mount be a bad choice. What about on the AZ mount that FLO sell it with.
Skywatcher 200p Dob
in Discussions - Eyepieces
Posted
I find it so difficult the wrong way round effect. Hopefully I'll get my head around it soon