Please clear this up...

[pat]

When looking down the peep-hole, the "secondary" reflection is shifted toward the front of the scope (showing less space). I guess this is called the offset.

I've seen an illustration that seemed too show the reverse. I'm I correct to assume that what I'm seeing is correct? Pat

[hemihaggis]

That depends on what kind of scope you have

[pat]

It's a 10'' reflecter

[Mr Q]

The following "offset" adjustments are for a f4.5 newtonian, as described in the owner's manual at the link below. Read the part on collimation.Meade DS-10 Owner's Manual

[hemihaggis]

hi pat , there are many different kinds of 10" reflector ,

is it a skywatcher ??

is it a celestron ??

orion perhaps ??

dob ??

what f number is it ??

what is its focal lenght ??

the more info we get the more we can help !!!

i have the meade sn10" schimt/newt , these are the only telescopes i know of that have the offset ..

is this your scope ???

[pat]

It's an Orion xt10"f4.7. Please forget about the offset part. It's the appearance of the reflection. If It"s shifted toward or away from the primary mirror. Pat

[hemihaggis]

i dont know if its any help pat but in my 10" its towards the primary

[pat]

If this is the case, I don't know where I went wrong when collimating. I followed Astrbaby instructions. And used the crosshairs to bisect the center of the donut. And the cheshire for the primary. Pat:icon_scratch: