View Single Post
  #29  
Old 17-04-2014, 07:07 PM
Renato1 (Renato)
Registered User

Renato1 is offline
 
Join Date: Mar 2014
Location: Frankston South
Posts: 1,279
Quote:
Originally Posted by -George- View Post
The cross-hair on the 8x50 finder scope I find pretty easy to use. I adjusted it that when the planet is in middle of the eyepiece that it is on the center or the cross-hair (more or less). Not perfect but, close enough that when I had a 250x eyepiece on, it was in view (off to side) as long as I had the cross-hair on the 8x50 in middle.

When it got all fogged up I was using the 30mm eyepiece (50x) to find Saturn, up, down, left right, up down, left, right, up, down, left, right, up, down, left, right, stop, stretch back as its sore from being in that bent position, up, down, left, right, up, down, left, right, comeon!!!!, up, down, left, right, up, down, yawn, left, right, up, down, left, right, look at the moon, ok, Saturn is kinda down right from there, point scope at moon first, then, down, right, up, down, left, right, back sore again, up, down, left, right, up and, left (stretch again back sore), up, down, left... THERE YOU ARE! (20min later).

Last time I got it in very easy, this time it took ages. what a view though! at 50x, it is very small, but all the detail still there, at 100x, it is more pleasing size, and, comfortable because I can sit there watching it without it flying through my view. At 250x it is gorgeous, but I have to set it up to be at the top of the view (or just out) and then just wait for it to pass through, giving me more time to observe before having to move it again.

Spent 3 hours out last night. Was gorgeous. Jupiter also looked amazing! It did have ripples on the edges of the planet at 250x, Saturn did not, so I put the 15mm eyepiece in at 100x and the ripple effect disappeared, the planet was in view much longer (which was nice), but I must say I preferred the planet being larger. Mars was a white ball pretty much, not much visible on it.

So when the view finder was fogged up, I basically used the 30mm, to help me find the planet, then, when in center, I pulled the 30mm out and attached the 15mm 100x, fine adjustment to get it back in middle, then i pulled it out and stuck the 6mm in at 250x, fine adjustment again but was pretty much in view. I used that as a way to aid in getting more magnification without trying to find it at higher magnifications as that was near impossible.

These 2 horrid drawings are basically how it looked at 100x and 250x (size wise) I tried to make it look on your screen the way it 'really' looks through eyepiece.

(there may be a section on forum where perhaps my first experience could be cut/pasted as a new thread for other beginners etc that wonder what you see, don't, usage struggles etc? if it is worth it... don't know - admins/moderators, let me know)
Hi George,
I think you need to make a little dew shield for your finder. Just get soem black plastic from the back of a cheap folder, roll it up and tape it, so that you can slip it on and off. If your optics are clean, well, you can wipe the eyepiece with some tissue paper.

I still don't know how you aim the 8X50 at a not so bright star, especially if there are other similar stars around. I like the cheap rifle scope red dot finders because, while not as cool looking as other ones, it's usually pretty easy to find a plastic or card board roll, and with a scissors and tape make a dewshield that easily covers them.

My last resort for very dewy nights, is a 12 Volt hairdryer I bought years ago, which I plug into a battery pack.

As for Mars, if you can't see features on it - stare hard. Then try a pair of sunglasses, preferably with some red or yellow in them, rather than bluish ones.
Cheers,
Renato
Reply With Quote