Goods can be purchased
- directly from our offices
- online
- on takealot.com
- or loot.co.za
First floor
44 The Avenue, The Gardens, Johannesburg, South Africa
Office Hours
Monday to Friday
9 a.m. to 5 p.m.
Saturday and Sunday
Closed
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The Optolong L-Ultimate is Optolong's newest and NARROWEST dualband filter. This is an exceptional choice for amateur astrophotographers who use one shot color (OSC) cameras for deep space imaging. This 3nm dualband filter will cut through the light pollution and provide high contrast data for you to process and enjoy.
The L-Ultimate from Optolong is a 2" threaded light pollution filter. While the L-Ultimate is similar to Optolong's L-eNhance and L-eXtreme filters in that it is a dual band filter that allows the transmission of Oxygen III and Hydrogen Alpha wavelengths, the L-Ultimate differs in that it only allows a 3 nm bandwidth at both the H-Alpha and OIII transmission lines. Compare this to the 7 nm of the L-eXtreme.
Transmission on this dual-narrowband filter occurs at 500.7 nm (OIII) and 656.3 nm (Ha), both with a 3 nm bandwidth. All other light is blocked, allowing greater capture of nebulae emissions at a greatly enhanced signal-to-noise ratio. This filter is particularly helpful in heavily light polluted areas.
Compatible with DSLR and color and mono CMOS and CCD cameras. This filter can be used with scopes that have a focal ratio greater than f/4.
Narrow, 3-nanometer Transmission
This filter from Optolong eliminates light at all wavelengths other than the Oxygen III and Hydrogen Alpha. Transmission for this filter occurs at 500.7 nanometers (OIII) and 656.3 nanometers (Ha), with a very narrow 3 nm bandwidth at both emission lines. Light from mercury and sodium street lights are suppressed, as well as unwanted natural light.
Narrow, 3-nanometer Transmission
This filter from Optolong eliminates light at all wavelengths other than the Oxygen III and Hydrogen Alpha. Transmission for this filter occurs at 500.7 nanometers (OIII) and 656.3 nanometers (Ha), with a very narrow 3 nm bandwidth at both emission lines. Light from mercury and sodium street lights are suppressed, as well as unwanted natural light.
Reduce or Eliminate Haloing Effects
Tests on the bright star, 52 Cyg, show that there is virtually NO halo effects! This is a star that is notorious for giving amateur astrophotographers with lesser filters, a bit of trouble.
Established in 1991, GIT has prided itself on providing our customers with personalised service and support for over 30 years.
We import and supply a Range of Astrophotographic, Optical, an d Audio products to our customers. All products are supported locally by ourselves.
Not sure about buying online? Feel free to set up a time to meet at our offices in Norwood Johannesburg where we can discuss and assist with your buying decision.
Thank you Laurence, the unit works very well with the speaker arrangement I have and has a clear sound, it has brought new life to these since my amp blew many years ago. Vaughan
Online-sales
Graphic Image Technologies (Pty) Ltd
GIT was established in 1991. We provide solutions to the broadcast and security markets.
We offer a range of quality Astrophotography, Optics and Audio Amplifier solutions. Please feel free to contact us should you have any questions.
More information is available on our main website at: https://www.git.co.za
Goods can be purchased
- directly from our offices
- online
- on takealot.com
- or loot.co.za
Office Hours
Monday to Friday
9 a.m. to 5 p.m.
Saturday and Sunday
Closed