At Fixya.com, our trusted experts are meticulously vetted and possess extensive experience in their respective fields. Backed by a community of knowledgeable professionals, our platform ensures that the solutions provided are thoroughly researched and validated.
I purchased a used Bushnell 78-4501 114mm reflector. I set it up per instructions, but when I look through the eyepiece I only see black. No light penetrates the lens not even when it is pointed at a light. All lens and dust caps are off.
- If you need clarification, ask it in the comment box above.
- Better answers use proper spelling and grammar.
- Provide details, support with references or personal experience.
Tell us some more! Your answer needs to include more details to help people.You can't post answers that contain an email address.Please enter a valid email address.The email address entered is already associated to an account.Login to postPlease use English characters only.
Tip: The max point reward for answering a question is 15.
Put the eyepiece with the largest number written on it into the focuser. DO NOT USE the 2x barlow if you have one. Take the scope outside during the day time and practice focusing on a distant object like a building or telephone pole.
Can you focus during the day time on a distant object. If you can nothing is wrong with the scope. Objects in the night sky are tiny, smaller than the tip of your finger held at arms length.
Practice focusing during the day time, and read my TIPS on my profile page.
Put the eyepiece with the LARGEST number into the focuser. DO NOT USE the 2x barlow if you have one. Practice focusing during the day time on a distant object.
If this is a reflector style telescope the focuser is on the UP END of the telescope. The mirror is the bottom of the telescope. Remove the lens cap.
I answered your question already-- TURN THE SCOPE around you have it mounted backwards! The eyepiece end is pointed UP. Like the picture above in your question.
The FOCUSER end should be pointed UP the mirror end is toward the ground. Turn the scope around and put the eyepiece with the largest number written on it into the telescope. DO NOT use the 2x barlow if you have one.
Go outside during the day time and practice focusing on a distant object.
This is a reflector style telescope. Put the eyepiece with the largest number written on it into the FOCUSER, point this end UP, remove the dust cap, the large mirror should be down in the bottom.
Go outside during the day time and practice focusing on a distant object. Read my "TIPS" on my profile page.
Also watch this video: http://www.andysshotglass.com/Collimating.html
The end with the focuser is point UP, the big mirror is on the bottom. Remove the cap, put the eyepiece in that has the largest number written on it and practice focusing on a distant object during the daytime.
Probably NOT actually pointed directly at the moon-- you should have moved it around a little -- the moon was probably just outside the field of view through the eyepiece. ........................ telescope must be pointed DIRECTLY at the sky object-- also use the eyepiece with the largest number written on it=== this gives the LOWEST magnification..... and a slightly wider field of view.
You are not in focus--- during the day try to focus on a distant object at least 100 yards away-- using the lowest magnification eyepiece, this is the one with the largest number written on it. DO NOT use the barlow which multiplies the magnification by 2 times!
×