Stronger moon filter?

[Martin-Devon]

Whilst the moon is out and confounding DSO work, I've decided to focus in and learn the various features on the moon. I've already have an Orion 2" moon filter which only allows 13% light transmission, but even using this, I still find that my retina is totally bleached out with the strength of light from the moon whilst observing. After 15 minutes it really becomes uncomfortable.

So - are there either stronger moon filters, or do I need some additional filter (colour filters or something similar) to allow me to do prolonged visual sessions of the moon without my eyes getting blasted?

[riklaunim]

Baader Solar Continuum is very dark green and gives nice image of the moon in my case.

[Cornelius Varley]

A red filter might work or a variable polarising filter will allow you to adjust the brightness of the moon.

Peter

[pbyrne]

There is a ND 25% filter.

[gedmac]

i stack 2 nd 96 filters on my ep,a o.9 and a 0.6:p

[mike.brightmore]

I use a variable polarising filter such as Filters - Variable Polarizing Moon Filter

which can be adjusted to whatever level suits you without introducing any unatural colour. These are two filters in one that rotate against each other to achieve the desired effect. The two halves can be separated so it is possible to attach one half to the diagonal and one to the eyepiece. This way you just have to rotate the eyepiece without removing it to dim or brighten.

[stev74]

Hi Martin,

I'd highly recommend the Moon & Neutral Density Filters - Variable Polarizing Moon Filter, you can then adjust the brightness to exactly what you need by rotating the top filter.

Cheers

EDIT - Mikes just beat me to it, I need to learn to type quicker!!

[HappySachs]

I was wondering, from what sort of aperture will you need to consider a moon filter? I'm comtemplating an 8" dob so I've a suspicion I'll be needing a filter too.

[stev74]

I was wondering, from what sort of aperature will you need to consider a moon filter? I'm comtemplating an 8" dob so I've a suspicion I'll be needing a filter too.

The Moon is the brightest object in the night sky and for that reason is an excellent object for beginners to start with. Easy to find, good for experimenting with different magnifications and learning to focus etc.

I'd recommend a Moon filter for any scope and as a first purchase for a beginner. Although you can't damage your eyes looking at the Moon unfiltered, it will ruin your your night vision and can feel a bit uncomfortable.

Or the short answer - YES

[Nexus 6]

I would have thought when the Moon is Waxing to Full, a filter would be required due to its sheer luminosity.

Alan

[HappySachs]

filter added to shopping list, cheers

[Martin-Devon]

Great feedback - thanks to everybody. I have just placed an order also for the 2" variable polarizing moon filter from FLO