Chubster Posted November 30, 2006 Share Posted November 30, 2006 OK which filters would you guys/girls say are a must have (especially for imaging) I see the IR Pass filter gets a good following, any others ? Link to comment Share on other sites More sharing options...
John Posted November 30, 2006 Share Posted November 30, 2006 The only one I've used so far is the Baader UHC-S narrowband filter. Basically it makes spotting nebulae (especially planetarys) easier but I have also found that it impoves the contrast when viewing M31. I'm a visual observer so I can't comment on how it is for imaging. From my moderately light polluted back yard I managed to spot the eastern Veil Nebula through an 80mm short tube refractor with this filter which quite impressed me. The Baader version is said to dim the stars less than other makes of narrowband filters which makes it useful in smaller scopes.The 1.25 inch version costs around £45.John Link to comment Share on other sites More sharing options...
SteelRat Posted November 30, 2006 Share Posted November 30, 2006 I got the Astronomic UHC-E filter. I'd never seen The Veil until my first night with this one. Well pleased with it. Never used it for imaging though cos the phone won't pic up nebs through my little scopes. Link to comment Share on other sites More sharing options...
moondog Posted December 1, 2006 Share Posted December 1, 2006 I've a Baader UHC-S filter for visuals and imaging, although I've not had a chance to give it a good workout yet.I believe there was a filter poll on one of the astro web sites. The UHC filters came out as the most useful all round fillters.( sometimes called 'nebula filters')MD Link to comment Share on other sites More sharing options...
russ Posted December 1, 2006 Share Posted December 1, 2006 IR/UV block filter is good for the planetary imaging.Baader neodymium gets my vote as most useful filter. Works wonders on the planets and moon. Gives a contrast boost for deepsky visual. And works wonders for deepsky imaging when shooting shorter exposures. And it's cheap!Russ Link to comment Share on other sites More sharing options...
FLO Posted December 1, 2006 Share Posted December 1, 2006 Going by sales alone, the most popular are:1. Moon filter (of course)2. Neodymium3. UV/IR4. UHC-S5. OIII6. Fringe Killer (would have expected this one to be higher?)There seems to be growing interest in the IR-Pass filter.Still haven't sold a Solar Continuum.http://www.firstlightoptics.com/products.php?cat=11 Link to comment Share on other sites More sharing options...
MartinB Posted December 1, 2006 Share Posted December 1, 2006 For imaging: -planets an I/R block filter.To deal with light pollution an Astronomic CLS filter which also cuts I/RFor imaging Ha targets eg Horsehead an Astronomik narrow band Ha filter - but you do need longer exposures with this - quite pricey but well worth it Link to comment Share on other sites More sharing options...
GordonCopestake Posted December 1, 2006 Share Posted December 1, 2006 I use the baader moon and skyglow LPR filter with good results in my light polluted skies. You can see a significant difference with and without the filter. Unfortuantly my street lamps are being replaced Link to comment Share on other sites More sharing options...
Ambermile Posted December 1, 2006 Share Posted December 1, 2006 It's odd that the IR pass is becoming more used when you consider that they mess up ccd images a bit but if you stop to think about it you will see why... IR is away at the end of the visible spectrum and up there seeing effects have less effect on images. If you could image *just* in IR you would increase your numer of good imaging nights quite significantly. Might get some odd piccies though Arthur Link to comment Share on other sites More sharing options...
MartinB Posted December 1, 2006 Share Posted December 1, 2006 Arthur, that's very interesting. The UHC is supposed to let through IR so maybe that's something to play with on wobbly nights if imaging through light pollution. From what I gather the CLS blocks IR as do the Astronomik LRGB type 2 filters Link to comment Share on other sites More sharing options...
FLO Posted December 1, 2006 Share Posted December 1, 2006 Budding imager here Why is a filter that passes IR recommended for planets but not deep-sky objects? Link to comment Share on other sites More sharing options...
Ambermile Posted December 1, 2006 Share Posted December 1, 2006 I think it's the other way around - imaging in colour (planets) will always require an IR block as the ccd is too sensitive at this wavelength and your colours will be all over the place as the software tries to make sense of the bayer matrix that's been messed up by the IR hitting the chip.Arthur Link to comment Share on other sites More sharing options...
FLO Posted December 1, 2006 Share Posted December 1, 2006 Thanks Arthur Link to comment Share on other sites More sharing options...
MartinB Posted December 1, 2006 Share Posted December 1, 2006 But you still want to block IR for DSOs as well cos the chips are sensitive in IR and won't necessarily have a positive effect on the image, or so I've read. Link to comment Share on other sites More sharing options...
Andrew* Posted December 1, 2006 Share Posted December 1, 2006 The Neodymium seems like a great thing to buy. I'm strongly considering that. Sorry Steve, but I don't thing you can beat Mr. Hind's deal: http://tinyurl.com/yyt3ou Does it cut out a lot of light? Is it good for imaging or visual or both?Andrew Link to comment Share on other sites More sharing options...
FLO Posted December 1, 2006 Share Posted December 1, 2006 Quite right Andrew!I have just contacted the importers and been told that the price has dropped on the Neodymium (my price-list still shows the original price). I have changed FLO's price, ordered a new price-list and will check the remaining filters tomorrow.If you see any other prices that need my attention, please let me know. If anyone has bought this filter from FLO after Nov 18th, please contact me so that I can refund the difference Link to comment Share on other sites More sharing options...
Andrew* Posted December 1, 2006 Share Posted December 1, 2006 what a generous man you are, Steve! Andrew Link to comment Share on other sites More sharing options...
Chubster Posted December 1, 2006 Author Share Posted December 1, 2006 So reading through this i think im going to get the Baader Neodymium (1.25") and the Baader IR-Pass Filter (1.25") . I take it these screw directly to the eyepiece ?? Link to comment Share on other sites More sharing options...
GordonCopestake Posted December 1, 2006 Share Posted December 1, 2006 If you plan on using 2" eyepieces at any time in the near future it might be worthwhile buying the 2" filter and then screwing it into a 1.25" to 2" adapater. This way you can use the filter with all your 1.25" eyepieces without unscrewing it each time plus you can use it with 2" eyepieces should you buy some in the future. Of course the downside is it costs more. Link to comment Share on other sites More sharing options...
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