Professional conversion of your
Canon EOS RP into an H-Alpha astro camera
You are purchasing a conversion service - not a camera
We professionally convert your Canon EOS RP into an H-alpha astro camera. This is particularly suitable for capturing emission nebulae in the H-alpha range.
Professional conversion of the Canon EOS RP for astrophotography
The Canon RP model is unique among the mirrorless R models when it comes to astro conversions. While sensor adjustment after removal of the factory infrared-blocking filter is relatively easy on other models, the Canon RP requires significantly more effort:
Due to the limited space inside the RP body, the sensor cannot be adjusted without completely disassembling the camera and precisely machining the sensor’s metal mount using a CNC mill. This effort is reflected in the price but ensures perfect optical results.
Why this is important:
Without this adjustment, the flange focal distance – i.e., the distance between the mount and the sensor – would not be accurate. This can lead to image field curvature, focus shifts, and the inability to maintain parfocal focus, especially with wide-angle lenses.
There are alternative methods for adjustment without CNC processing, but these inevitably come with quality compromises.
Note for customers:
There are cheaper DIY conversions and offers that omit this critical adjustment – usually noticeable by a very low price or minimal effort. We recommend inquiring how the sensor was adjusted. An improper conversion can degrade image quality. If your camera was previously converted and shows focus issues, we are happy to correct this upon request.
Our standard is a professional conversion with full image sharpness, accurate focusing behavior, and maximum mechanical precision – without compromise.
Process Information:
- Shipping (to and from you) is included in the price. After payment, you will receive a prepaid DHL shipping label via email.
- Please pack the camera well protected with the body cap. Accessories such as battery or memory card are not required.
- After receiving your camera, we will inspect it and complete the conversion in our workshop within 7–10 working days.
- Return shipping is insured and handled by DHL.
- You will receive an invoice including VAT – we provide a 1-year warranty on the conversion.
Advantages of Our H-Alpha Modification:
Our modified cameras are over four times more sensitive to H-alpha light (656.28 nm) and over six times more sensitive to sulfur-II lines than factory models.
Technical Background:
The H-alpha range lies near the visibility limit of the human eye. Standard cameras mostly block this range. By removing the blocking filter, we expand the spectral sensitivity to up to 700 nm. This results in shorter exposure times and better signal quality – a crucial advantage for stacking multiple exposures.
The so-called phaser layer infrared-absorption glass filter is removed by us using cleanroom technology. We then adjust the sensor position according to Canon specifications – ensuring autofocus and infinity focus remain intact.
Sample images show the sensor assembly of a Canon 1000D before and after conversion. The piezoelectric dust reduction system remains functional. So your camera remains fully operational – now with significantly increased sensitivity to emission lines.
Example Images:
The images include M51 (Whirlpool Galaxy), M31 (Andromeda), as well as the Elephant Trunk and Rosette Nebula – taken with modified EOS 1000D (© Michael Auster) and 1100D (© Uli Klein).
Frequently Asked Questions (FAQ)
1. Can I still use the camera during the day?
Yes. For daytime shots, we recommend either setting white balance manually or using a UV/IR cut filter. These are available as screw-on or clip-in options.
2. Who is eifelcam?
Customers have trusted our conversions for over 13 years. Our expertise is based on decades of experience in electronics and IT – including co-development of DolphinDOS for the Commodore C64.
3. Why do customers trust us?
In IT since 1985, in the astrophotography market since 2012 – with over 3,000 satisfied customers.
If you would like to see more photos by Uli Klein (including telescope data and exposure times), search for: astro-uk0.webnode/
