Baader Astro Solar Film A4 Sheet

I bought this product to construct a filter for use with the cookin filter system. the instructions and advice that came with it was clear and concise, witch made the construction of the filter quite a simple process, When finised the filter worked very well and reproduced a true colour of the sun, also far less expensive and just as good as a commercily produced product. The filter film came wll packed with stiff card and a protetive clear sheet,

Amazing solar filter/shield/film.However you have to be very careful with it and I cannot stress how careful you need to be.If you pick it up wrong or let it bend or put finger prints on it then you can kiss it goodbye.Don't try to use it without following the instructions by making a cardboard holder for it.Don't think that you will just try it out first as it will turn into a crinkled mess.Highly recommended but heed my warning and follow the instructions!!

This product does what it says on the packet. It cuts out most of the light from the sun and allows you to view its surface safely-provided of course that you make a filter to cover the entire light capturing opening of the telescope.I use it on my 4.5" reflector. The opening is about 6" in diameter and I made a filter to cover this. I found it almost impossible to avoid a few waves in the filter but, in the event, the slight irregularities made no discernable difference.I am now able to see sun spots on the sun's surface but I was sorry to see that I could make out no other details. I had hoped to be able to see granulation on the surface but I could see no details of any sort apart from the sunspots. I have been told that a Solar Continuum filter used in conjunction with the Baader filter should enable me to see granulation but the filters cost about £50-£60 so I have not yet taken the plunge and bought one.

I have always wanted to use my telescope to look at the sun and this film provides a low cost way to make your own objective filter to do so. The film was supplied as an A4 sheet and came complete with full and comprehensive instructions on how to incorporate it into a home-made housing. I had anticipated the procedure somewhat and had already fabricated a housing prior to receipt. Mounting the film to the housing was a little fiddly but the tips in the instructions were extremely helpful and I would say that if you followed those you would find it well within your ability to obtain a satisfactory result. You can see the steps I took to manufacture the filter and the first images I obtained through the eyepiece at my Youtube site [...]Telescope House who supplied the product were prompt with delivery and even furnished me with a 'prize draw number' offering the chance to win astronomically-oriented prizes every week with odds far better than that offered by the Natonal Lottery!If you wish to see the transit of Venus (when that planet passes between us and the Sun) in June this Year then this is a great way to do it.

The product name says that this is a A4 sheet. A4 is a standard that size that is 210x297mm. But the size of this film is 200x290mm.My telescope mirrors diameter is exactly 200mm so that missing 10 millimeters will not allow full size filter. Smaller diameter means less resolution.Other properties are very good but I'm really disappointed about the violation of the size of A4 standard.

I had thought to buy the more expensive solar filters for viewing the sun but came upon the Baader filters by accident after reading about the forthcoming transition of Venus in an astronomy magazine. When the filter arrived I had to enlist my husband's help (unfortunately!) but bless him he did a sterling job with a cereal packet and some duck tape. A true Blue Peter moment. Now it is really easy to use and gives you amazing views of our Sun. As long as you check the filter each time before use and make sure it's secure...happy viewing. Just a shame it was cloudy here in South Wales the morning of the transition. Typical! I wholeheartedly recommend these filters.

I bought a filter with this product as part of the unit. It was expensive, so decided to buy the film and make my own holder. The film works really well and allows me to view the sun with complete safety. Recommended.

This is much better value than a conventional filter, promptly delivered, although the instructions were not great. There are two films on either side, one tissue and one clear. It is easily ripped and wrinkled so great care is needed when creating your filter. This started as a filter for my telescope and ended up as a filter for my binoculars! (it would have been a struggle anyway: an A4 sheet would fit less than 6 inch dia telescope, I estimate). It is a basic filter so good for sunspots, eclipses, transit of venus (if you can wait over 100 years for the next one, assuming there are no clouds) but will not show the sort of detail you might see in astronomy mag photos.