Jump to content
Welcome to Backyard Astronomy Space - please register to gain access to all of our features. Click here for more details. ×
SmallWorldsForum Microscopy and macro photography - a companion forum to BYA ×

finder won't form an image


BrendanG

Recommended Posts

I recently inherited a telescope, so I tried to use it.  I thought I'd try using the finders first, but I can't see squat.  I don't mean that I can't find anything.  I mean that I can point it at a light source (like the moon), and I will see light, but what I see looks nothing like the source of the light.  It is as if I were looking at defects on the lens, or as if there were a paper film covering the finder, and all I saw was the texture of the paper.  

 

I tried looking at things around the house with the finders and eye pieces separately, and I can see images with them.  I just have to hold them far from my face, and the images look small.  But as soon as I put the eye piece and finder together (that's what I've read that I'm supposed to do), I get images like what I posted below.  That makes me think maybe these pieces don't actually go together?  Like I said, I inherited these pieces, so it's possible that they got all jumbled up and aren't meant to be put together.  Or maybe I'm doing something really dumb.

 

I took the pictures by looking at the moon with the finder-eyepiece combination, and holding my phone up to the eyepiece.

Picture 1

Picture 2

Link to comment
Share on other sites

It will be out of focus. Ficussing a finder is not always obvious.  What scope and finder do you have ie presume the finder is the one tgat belongs to the scope. 
 

Carole

Link to comment
Share on other sites

On 9/3/2022 at 5:14 AM, BrendanG said:

  I mean that I can point it at a light source (like the moon), and I will see light, but what I see looks nothing like the source of the light. 

 

 

First the obvious - make sure that the finder scope has a clear line of sight to the sky and isn't obstructed by another part of your set-up.

Could you post a picture of the finder scope you used to take those pictures?

Link to comment
Share on other sites

Create an account or sign in to comment

You need to be a member in order to leave a comment

Create an account

Sign up for a new account in our community. It's easy!

Register a new account

Sign in

Already have an account? Sign in here.

Sign In Now
  • Welcome to Backyard Astronomy Space - please register to gain access to all of our features

    Once registered you will be able to contribute to this site by submitting your own content or replying to existing content. You will also be able to customise your profile, receive reputation points for submitting content, whilst also communicating with other members via your own private personal messaging inbox. 

     

    This message will be removed once you have signed in.

  • Tell a friend

    Love The Backyard Astronomy Space? Tell a friend!
  • Topics

×
×
  • Create New...