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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Narrowband filters are great for astroimagers looking to increase the contrast between the celestial object and the night sky. While these types of filters do not eliminate the effect of light pollution, they do boost the contrast between an object like a nebula and the sky around it. The ZWO 2" narrowband filters work by reducing the transmission of certain wavelengths of light that come from skyglow and artificial lighting. These are called mercury vapor, both high and low pressure sodium vapor lights, and neutral oxygen emission in our atmosphere.
ZWO's SII 7nm filters passes light at a 672nm wavelength and is fine-optically polished to ensure accurate 1/4 wavelength. With this wavelength transmission, the SII filter is most suitable for nebula observation and imaging. When it comes to visual observation, it works best with most emission nebulae, planetary nebulae, and supernova remnants. If it is used with the H-alpha and OIII filters, it is perfect for tricolor CCD astrophotography!
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