Do I need to alling the finder scope each time?

[sabin0707]

Hello,

After spending more time on the scope reviews site I decided to start with a medium Refractor from Sky Watcher.

I bought it on Saturday and played with it for 2 days (off course no piece of sky was visible due to heavy rain - keep in mind I leave in East Europe and rain during this time of the year is not that common, especially not for 2 days in a row).

That meant I had plenty of time to look at the city sky line (I leave on the edge of the City overlooking North wih no building in front of me for about 500-1000m). I managed to align the finder scope quite easy using small windows from distant buildings (3-4 km away)

I found it difficult to keep it aligned. Each time I moved the scope I needed to realign it. Is there any way to keep it aligned? Should I upgrade the one that came with the scope?

Thanks in advance!

[Digz]

It should remain pretty well aligned. What scope do you have? Sometimes the finders have a groove in them in which a gasket sits to keep it snug in the holder.

[sabin0707]

Evostar-90 (EQ2) Sky-Watcher 90/900

The finder scope sits quite loosely on a spring + 2 screws support.

[Digz]

Does the finder scope have a groove in the barrel? I'm not familiar with the finder scope on that model. Either way it shouldn't be loose in the holder.

[sabin0707]

It has a groove where the spring + 2 screws go in but if I tight the screws so it is not loose it is no longer aligned. The only position where the finder was aligned was with the screws very loose.

This is the model: http://www.firstlightoptics.com/evostar/skywatcher-evostar-90-eq2.html

[Moonshane]

you may not have noticed (or realised the use of) a large black rubber O ring in the box. this gives the finder some flexibility but enough sturdiness to remain in place. you can use an ordinary elastic band if you don't find it.

[Digz]

The two screws are used to adjust and align the finder, there should be a third 'pin' which helps hold the finder. Sounds to me like your missing the rubber gasket, hopefully someone else with the same scope can confirm.

[Moonshane]

[sabin0707]

Thanks.

II see no gasket but I see the place where it should be on the finder scope. I will see if I can find something to use tomorrow if I can;t find the actual gasket.

[Steve Ward]

It's possibly in the bag with the tools , in a separate little bag.

That's where I found mine , eventually . . .