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#1
AstroBerza / For Sale a BelOptic, 3 in 1, L...
Poslednja poruka CarlDori - danas u 03:18:25 POSLE PODNEHello
For Sale I have a BelOptic, 3 in 1, Laminated IRcut – Pol – ND Filter 1.25inch ( 31mm )
This filter has a single use only, it is intended to be used on an eyepiece that's inserted into a Herschel Prism for safe solar viewing. The purpose is to combine in a single filter assembly what solar photosphere visual observers would otherwise require three separate stacked filters to achieve:- an IR Cut filter for safety plus a Polariser for brightness control plus a Neutral Density to bring the overall brightness to within comfortable levels. It was a product of Oliver Smie the optical designer and owner of BelOptic.
I checked with Oliver Smie and he advised me that it is no longer in production.
Many years ago, perhaps fifteen or so I purchased this filter and used it in my Herschel prism, I was completely satisfied with it, and it was a far better solution than stacking an IR cut filter then a polarizing filter and a finally a Neutral Density filter. After a couple of years I discovered IDAS ND 5.2 solar filters and stopped using my Herschel Prism and the IRcut-Pol-ND filter saw no use at all.
150 Euros plus postage or inspection and collection from Vranic.
Inspection welcome. Pickup from Vranic, 45 km from Belgrade, I can't deliver as I don't drive.
Best Regards
Carl Dori
062 172 3837
carlddori@gmail.com
For Sale I have a BelOptic, 3 in 1, Laminated IRcut – Pol – ND Filter 1.25inch ( 31mm )
This filter has a single use only, it is intended to be used on an eyepiece that's inserted into a Herschel Prism for safe solar viewing. The purpose is to combine in a single filter assembly what solar photosphere visual observers would otherwise require three separate stacked filters to achieve:- an IR Cut filter for safety plus a Polariser for brightness control plus a Neutral Density to bring the overall brightness to within comfortable levels. It was a product of Oliver Smie the optical designer and owner of BelOptic.
I checked with Oliver Smie and he advised me that it is no longer in production.
Many years ago, perhaps fifteen or so I purchased this filter and used it in my Herschel prism, I was completely satisfied with it, and it was a far better solution than stacking an IR cut filter then a polarizing filter and a finally a Neutral Density filter. After a couple of years I discovered IDAS ND 5.2 solar filters and stopped using my Herschel Prism and the IRcut-Pol-ND filter saw no use at all.
150 Euros plus postage or inspection and collection from Vranic.
Inspection welcome. Pickup from Vranic, 45 km from Belgrade, I can't deliver as I don't drive.
Best Regards
Carl Dori
062 172 3837
carlddori@gmail.com
#2
AstroBerza / For Sale IDAS UHB-RS 52mm Sola...
Poslednja poruka CarlDori - danas u 02:07:02 POSLE PODNEHello
I have for sale an IDAS UHB-RS 52mm ( front mounting ) Solar Filter.
Optical Density is rated as ND5.2 ( 1/160,000), it provides a neutral balance ( no color shift ) viewing.
This filter so impressed me that I bought the larger 82mm and for the last 10 or 11 years have used it as my white light photosphere filter and sold my 2 inch Herschel Prism.
This front mount filter threads directly onto the objective lens of my Borg 50mm Achromat scope.
I've checked the various web pages AstroHutech, Ted Astro and TANI where IDAS filters are listed and these UHB-RS are not listed, so maybe they are no longer available.
Euro 125 plus postage, or inspect and pick up from Vranic.
If you are interested in the Borg 50mm I could be persuaded to part with it.
Inspection welcome. Pickup from Vranic, 45 km from Belgrade, I can't deliver as I don't drive..
Reason for the sale is, I'm into my seventies and I'm downsizing to what I actually use.
Best Regards
Carl Dori
062 172 3837
carlddori@gmail.com
I have for sale an IDAS UHB-RS 52mm ( front mounting ) Solar Filter.
Optical Density is rated as ND5.2 ( 1/160,000), it provides a neutral balance ( no color shift ) viewing.
This filter so impressed me that I bought the larger 82mm and for the last 10 or 11 years have used it as my white light photosphere filter and sold my 2 inch Herschel Prism.
This front mount filter threads directly onto the objective lens of my Borg 50mm Achromat scope.
I've checked the various web pages AstroHutech, Ted Astro and TANI where IDAS filters are listed and these UHB-RS are not listed, so maybe they are no longer available.
Euro 125 plus postage, or inspect and pick up from Vranic.
If you are interested in the Borg 50mm I could be persuaded to part with it.
Inspection welcome. Pickup from Vranic, 45 km from Belgrade, I can't deliver as I don't drive..
Reason for the sale is, I'm into my seventies and I'm downsizing to what I actually use.
Best Regards
Carl Dori
062 172 3837
carlddori@gmail.com
#3
AstroBerza / For Sale a Nagler 7mm ( type 1...
Poslednja poruka CarlDori - danas u 01:43:28 POSLE PODNETele Vue 7mm Nagler, the original series.
A very easy eyepiece to use, it's in good used condition, no issues with the glass, coatings or body, but it is 27 years old.
TeleVue top cap, Generic bottom cap, no box but I have a bolt case of the right size.
Asking € 100 plus postage.
Inspection welcome. Pickup from Vranic, 45 km from Belgrade, I can't deliver as I don't drive..
Reason for the sale is, I'm into my seventies and I'm downsizing to what I actually use.
Best Regards
Carl Dori
062 172 3837
carlddori@gmail.com
A very easy eyepiece to use, it's in good used condition, no issues with the glass, coatings or body, but it is 27 years old.
TeleVue top cap, Generic bottom cap, no box but I have a bolt case of the right size.
Asking € 100 plus postage.
Inspection welcome. Pickup from Vranic, 45 km from Belgrade, I can't deliver as I don't drive..
Reason for the sale is, I'm into my seventies and I'm downsizing to what I actually use.
Best Regards
Carl Dori
062 172 3837
carlddori@gmail.com
#4
AstroBerza / Celestron 35mm Ultima for sale
Poslednja poruka CarlDori - danas u 01:28:36 POSLE PODNEHeck I have for sale a Celestron 35mm Ultima series eyepiece.
This classic eyepiece is in very good / excellent condition, body, glass and coating are all spotless.
Comes with top and bottom caps, a winged eyeguard and as I received it many years ago in a bolt case, that's how I'm selling it.
I often used this eyepiece in my scope instead of fussing with a separate finder scope as it's low magnification and huge field of view make locating and centring objects easy.
Asking € 100 plus postage.
This classic eyepiece is in very good / excellent condition, body, glass and coating are all spotless.
Comes with top and bottom caps, a winged eyeguard and as I received it many years ago in a bolt case, that's how I'm selling it.
I often used this eyepiece in my scope instead of fussing with a separate finder scope as it's low magnification and huge field of view make locating and centring objects easy.
Asking € 100 plus postage.
#5
AstroBerza / Odg: Pairs of Zeiss and TV Pan...
Poslednja poruka CarlDori - danas u 01:24:57 POSLE PODNEOne Panoptic Sold, one remaining at €175
Thank You
Thank You
#6
AstroBerza / Odg: TV 10mm Delos for sale
Poslednja poruka CarlDori - danas u 01:23:34 POSLE PODNESold, Thank You
#7
AstroBerza / TV 10mm Delos for sale
Poslednja poruka CarlDori - Maj 13, 2026, 04:58:00 POSLE PODNEHello
I have a 10mm Tele Vue Delos eyepiece for sale.
Body, glass and coatings are in excellent condition.
Box, foam inserts, top and bottom caps, all in excellent condition.
I've owned and used this eyepiece for ten years it's a very comfortable eyepiece to use. It got a lot of use mono viewing in my 12 inch Obsession ( which is also for sale).
Asking € 200.
Inspection welcome. Pickup from Vranic, 45 km from Belgrade, I can't deliver as I don't drive..
Reason for the sale is, I'm into my seventies and I'm downsizing to what I actually use.
Best Regards
Carl Dori
062 172 3837
carlddori@gmail.com
I have a 10mm Tele Vue Delos eyepiece for sale.
Body, glass and coatings are in excellent condition.
Box, foam inserts, top and bottom caps, all in excellent condition.
I've owned and used this eyepiece for ten years it's a very comfortable eyepiece to use. It got a lot of use mono viewing in my 12 inch Obsession ( which is also for sale).
Asking € 200.
Inspection welcome. Pickup from Vranic, 45 km from Belgrade, I can't deliver as I don't drive..
Reason for the sale is, I'm into my seventies and I'm downsizing to what I actually use.
Best Regards
Carl Dori
062 172 3837
carlddori@gmail.com
#8
Astrofotografija / Odg: Messier objekti
Poslednja poruka Astro_fun_times - Maj 13, 2026, 08:40:21 PRE PODNERadio sam sve i fokuser prekrio. Pozadi ja imam plastiku koja zatvara primar, imam je od pocetka koriscenja i nije bilo problema, do ove sezone. Nije do stray light nego nesto bas jako svetli na jugo istoku i to smeta i ulazi u glavni otvor teleskopa.
#9
Astrofotografija / Odg: Supernova SN 2026kid u NG...
Poslednja poruka ε Aurigae - Maj 12, 2026, 12:09:25 PRE PODNEBravo Ljubo!
#10
Astrofotografija / Odg: Sunce
Poslednja poruka Maki - Maj 11, 2026, 03:48:48 POSLE PODNEvreme je pakao, da nema Sunca na kašičicu, ništa...
2026-05-05-0826_3-U-L-Lunt_Gain=221_Exposure=6.0ms_lapl3_ap2119.tif inv.mon by Vlad, on Flickr
2026-05-05-0826_3-U-L-Lunt_Gain=221_Exposure=6.0ms_lapl3_ap2119.tif inv by Vlad, on Flickr
2026-05-05-0820_6-U-L-Lunt_Gain=165_Exposure=6.0ms_lapl3_ap7623.tif invcol by Vlad, on Flickr
2026-05-05-0826_3-U-L-Lunt_Gain=221_Exposure=6.0ms_lapl3_ap2119.tif inv.mon by Vlad, on Flickr2026-05-05-0826_3-U-L-Lunt_Gain=221_Exposure=6.0ms_lapl3_ap2119.tif inv by Vlad, on Flickr2026-05-05-0820_6-U-L-Lunt_Gain=165_Exposure=6.0ms_lapl3_ap7623.tif invcol by Vlad, on Flickr