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Astrodon LRGB Gen2 E-Series Tru-Balance Filter Sets

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VENDOR: Astrodon

$547.00

1.25in LRGB(Mounted)
31mm LRGB (Mounted)
36mm LRGB (Mounted)
49.7mm Square LRGB (Unmounted)
65mm Square LRGB (Unmounted)
49.7mm Round LRGB
PRODUCT INFORMATION
price match
Frequent Questions
CUSTOMER REVIEWS
PRODUCT INFORMATION

Astrodon LRGB Gen2 E-Series Tru-Balance Filter Sets have revolutionized CCD imaging. Their popularity is due to their ease-of-use, high optical throughput and great resulting colors for galaxies, star clusters and nebulae.

E-Series filters are designed to approximately equalize the flux of red-sensitive full-frame (formerly Kodak E-Series) CCD detectors, including compensation for the solar photon flux. This means that your RGB color combine weights will be approximately 1:1:1 within perhaps 10% for equal length exposures.  This can never be perfect, but it does allow you to take one exposure time for all of your RGB data and therefore, only just one corresponding dark exposure time.  Again, this saves you precious imaging time and thus, simplifies your imaging.

Features:

  • Set includes Luminance (NIR/UV-blocked colorless), Red, Green and Blue filters
  • 1.25″ mounted, 31, 36, 49.7 mm dia, 49.7 mm square (36 mm filters will not exceed 36.1 mm dia.)
  •  3 +/-0.025 mm single 1/4-wave fused silica substrate before coating
  • 30 arcsec parallelism
  •  ~1:1:1 color combine weights for G2V white-point for Full-Frame (E) detectors
  • Best choice for back-thinned and Sony detectors
  • Equal RGB exposures and one dark time
  • Better color separation (see spectra)
  • Better color rendition for galaxies based upon color theory
  • Significant reflection and star halo reduction
  • Enhanced contrast for HII regions in galaxies due to narrower red (not orange) filter
  • Spectral “gap” between green and red filters to minimize effect of light pollution, especially from high pressure sodium street lamps (see spectra)
  • Highest efficiency blue filter with less UV
  • Correct “teal” OIII color for planetary nebula (OIII signal >97% in blue and green)
  • Parfocal with Astrodon‘s high-performance narrowband, Clear and Near-IR Luminance filters
  • Ultra-hard and durable sputtered coatings coated to the edge of each filter
  • Proudly made in the U.S.A.

Astrodon LRGB Gen2 E-Series Tru-Balance Filter Sets were designed for cameras containing the full-frame KAF8300, KAF3200, KAF6303, KAF16803 sensors. They are also a good choice for the latest Sony and back-thinned sensor or any camera with a Progressive Scan Sensor, Front Illuminated or Back Illuminated.  The E-Series red filter is a deep red filter about 60 nm wide, which excludes much of the light pollution from high pressure sodium street lamps. Other filter suppliers try to “force fit” their orange filter (designed for the interline KAI11000, KAI2000 sensors) for use with these full-frame sensors. Their orange filter is about twice as wide spectrally as our deep red filter.  As a result, their orange filter tends to “wash out” HII regions in galaxies and detail in nebula. Their blue and green color weights are no longer balanced and as a result, the OIII color in planetary nebula is skewed strongly toward blue, rather than the correct teal color. These are the reasons why Astrodon designed E- and I-Series filters for these different classes of cameras for optimum results.

Notice that Astrodon LRGB Gen2 E-Series Tru-Balance Filter Sets are coated to the edge. Other filters leave an uncoated “rim” near the edge that must be blocked by a mask or the design of the filter wheel.  Our approach minimizes stray light from polluting your image.

Technical Data

price match

We work very hard to ensure that we offer the absolute best prices online.  If you find another online store that offers a lower price then us within six months of your purchase date please let us know and we will refund your original payment for the difference.  We want you to feel confident that you are getting the absolute best price for the product you are ordering.  If you find that our own website has a lower price for the same item you have ordered within six months of your purchase date will refund the difference as well.

To request your partial refund simply e-mail us a link to the same product on our website, or on our competitors website within six months from the date of your order and we will process the credit accordingly.

Our 100% Price Guarantee has some limitations:

  • You must purchase the item from our website before requesting your Price Match Guarantee
  • Promotions such as rebates and buy one, get one free offers are not eligible
  • The item must be in stock on the competitors website
  • The competitor must be an online store, they may not have a retail location
  • The website can not be a discounter or auction website (ie; eBay, overstock, etc..)
  • The competitor must be an Authorized Retailer of the product in question
  • The Price Match Guarantee includes the item price and the shipping charges, it excludes sales tax
Frequent Questions

Order Confirmation:

As soon as you place your order, you will receive an order confirmation e-mail.  This means that we have received your order in our system and pre-authorized your credit card for the purchase.  As soon as we receive your order, we automatically reach out to our suppliers to confirm that it is in stock and available for immediate shipment.  If your item is on backorder or unavailable, we will void the pre-authorization and reach out to you via e-mail.  If your item(s) are available for immediate shipment (within 5 business days), we will process the charges and submit the order for shipment.

Order Shipment:

If your order is stock and we process the charges to your credit card, it will ship within five business days from the date of your order.  We will send you tracking information within 24 hours of your order leaving the warehouse to the e-mail address you provided when checking out.  If you do not receive tracking information from us within six business days of your order, feel free to follow up with us at support@hyperion-astronomy.com

Damages:

Please inspect the packaging of your item(s) when they arrive, if you notice any damage you should make note of it when signing for delivery.  If your item(s) do arrived damaged, please send photos support@hyperion-astronomy.com

 and we will process an insurance claim on your behalf.

Cancellations & Refunds:

 If you order has shipped, you (the buyer) will also be responsible for actual return shipping charges. Refunds will only be issued to the original credit card that you use when placing your order.

CUSTOMER REVIEWS
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Astrodon LRGB Gen2 E-Series Tru-Balance Filter Sets

Astrodon LRGB Gen2 E-Series Tru-Balance Filter Sets

$547.00
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Prism software

I'm new to Astrophotography and was looking for someway of controlling telescope and Observatory and found Prism . I found it easy to setup easy to use I can recommend this .

Great Telescope

Easy to put together and easy to use for a beginner. I had to use the included spacer to get my 1.25" eyepieces to focus properly in case you're having that issue.

powerful device

very reliable, strong, and dependable

PRISM software - the benefit of the full integration

I'm commission a site for serius observations and there are a lot of requirements and technologies to be harmonized and so many areas of post-processing that require dedicated software that you can really get lost. PRISM is open and allows full integration of any equipment in few mouse clicks with an impressive set of analysis and post-processing and automation tools that can drive efficiently you into a professional experience of the sky wonders.

Best Choice Around

Software is very well thought of and is packed with anything you would ever need.
The interface is gorgeous, it integrates well all the features.
Price is very convinient; I am very glad that Hyperion does not require a subscription fee, like others unfortunately do.
I don't give a 5 star because the pointing model for Alt/Az mounts is unavailble.