First step taken

[alan potts]

Well,

For an owner of a vast aray of wide to ultra wide field eyepieces I took a step down from this and bought a narrow FOV BGO 6mm from FLO. I will not recieve it until I land in England which is on 30th April, so I will not be able to use it until I return here on 18th May, unless it comes with free 80mm APO and mount. I wanted to deal with it now because they seem to running out and I wanted FLO to understand they were dealing with a serious customer, it is easy to make promises in e-mails.

So I have the 6mm in the bag and maybe a Hutech will have to surfice for the 9-10mm spot, I would like something a bit shorter but I truely believe the 5mm will be difficult for me to use with having long eyelashes. I may well buy the Pentax 5mm XW if they have one.

So I hope this step is not a backward one.

Alan

[michael.h.f.wilkinson]

If you do not need to wear glasses and tolerate the small FOV, the BGOs are hard to beat. I will stick to my XWs and XF. I am of curious to know how the BGOs compare to an XW

[alan potts]

Michael,

I believe John made a comparision witht the BGO and XW 5mm in a report on Sirius, brief but he make a point that the Pup was easier to see with the BGO, I'm just getting a few for planetry to give them a try, if I don't like them I will just sell them on, I am happy to loose a little just to see for myself.

However if I go for one I will do a report using my array of scopes.

Alan

[Doug]

Hi Alan

congratulation on your new additon

I have for many years looked and these are they for a short focal length or can they be used with a f/10 2000mm SCT scope ?

I also notce that FLO only have the 6mm left are they continuing them?

Many thanks

Doug

[John]

I'll be very interested to see what you make of the BGO 6mm Alan.

Using these is quite a different experience to using a long eye relief, wide field eyepiece. I find I need to be "in the right mood" for orthos

Your scopes are driven though wheras mine are all alt-az and undriven so your should find the orthos easier to use. With the 6mm and 5mm, finding the eye lens in the dark can be a challenge !

@ Doug: The Baader Genuine Ortho's are out of production and stocks have very nearly run out everywhere now with just a handful (literally) seemingly left to be sold new. The longer focal length ones (9mm, 12.5mm and 18mm) ran out first. Baader have released the Baader Classic orthos in 3 focal lengths (6mm, 10mm and 18mm) which are less expensive than the BGO's, of simpler design and finish but optically very good I found. There is another ortho range on the horizon so hopefully these will fill the niche that the Baader GO's did.

[Doug]

Thanks John

[alan potts]

John,

I am sort of basing my reason for getting the 6mm , apart from this is the only one they have, on the fact that I had the 5.5mm Meade S Plossl. This as I am sure you know has very short ER as has the shorter Ortho's, I was able to use this with a bit of moving the head around and getting in the right place.

I see two things coming out of this, I could also be in right mode with it and it will give me something to write a review about, not to steal your thunder but, 6mm BGO 'V' 6mm Delos, centre only. I will try to just consider like area for like area.

If I don't get on with it it will be in classified soon after..

I believe it's SGL 8 this weekend hope the weather is good.

Doug, Yes you can use the eyepieces on any scope and should be fine a 2000mm F10, But this will give you a very very high magnification, you would be better with something around 9-10mm.

Alan.

Alan.

[Naemeth]

The 5mm would be very high magnification, it's at the 2x per mm magnification . At 400x, you really are at the mercy of the atmosphere

[Damo636]

Nice one Alan, the BGO/Delos should make for an interesting comparison! I tried the 5, 6 & 7mm BGO's for a time when I had a driven scope, but ultimately let them go as I found them uncomfortable for prolonged observing (the 5mm especially). Looking forward to your thoughts :-)

[John]

I see two things coming out of this, I could also be in right mode with it and it will give me something to write a review about, not to steal your thunder but, 6mm BGO 'V' 6mm Delos, centre only. I will try to just consider like area for like area.

The more reviews / reports the better IMHO Alan

If I can't try them personally, the way I find out about equipment is to read as many opinions on them as I can find and then see if any trends emerge

[alan potts]

Well that is something for the back end of May, Antares should be up at a reasonable time then and I have some nice globulars to test them against and maybe the Swan Nebular will make a change from M42. we will see.

Alan.