Modified 450D’s First Light

Eteny_moon_aug8_2014_modified_camera_small
With the built-in filter removed and replaced with a Baader UV-IR filter, the camera now has an optimized sensitivity to red, particularly, to H-alpha light. H-alpha light is perceived by the naked eye as deep red hue. It is important to astrophotographers because certain types of nebula emit light at this wavelength. Image taken with a modified Canon 450D and a Sky-Watcher 100ED refractor. To view highest resolution available, click here.

To view other my other DSLR modification projects, follow the links below:
August 2014 Modified Canon 450D DSLR for Astro-imaging (improved sealed chamber prototype)
February 2014 Modified Canon 1000D DSLR (Baader BCF filter replacement)
December 2013 Modified Canon 450D DSLR for Astro-imaging (custom-fabricated lens mount)
November 2013 Modified Canon 450D DSLR for  Astro-imaging (sealed chamber prototype)
March 2013 Modified Canon 450D DSLR for Astro-imaging (sealed chamber prototype)
February 2013 Modified Canon 450D DSLR for Astro-imaging

For DIY astronomy projects useful for astrophotography, click here.
For tutorials on how to get started with astrophotography, click here.
To visit my astrophoto gallery, click here.
To subscribe to this site, click here.

© Anthony Urbano (Manila, Philippines)

Modified Canon 450D DSLR for astro-imaging (August 2014)

Here is my most recent prototype of a Peltier-cooled Canon 450D DSLR intended for astro-imaging. The intention was to incorporate improvement into each version. In this particular prototype, the camera is housed in a smaller plastic case, making it more compact, lighter, and more sturdy.

modified_canon_450D_aug_2014
Modified Canon 450D DSLR for astro-imaging (August 2014) mounted on a Sky-Watcher 100ED refractor. View test shot here.

A custom-fabricated aluminum lens mount is used to allow the modified camera to accept standard Canon lenses and T-adapters. A Baader UV-IR filter is used to optimize sensitivity to H-alpha wavelengths, which also serves as the sealed chamber’s optical window. During operation, sensor temperature drops to 30 degrees C below ambient. To avoid dew from condensing on the optical window, coils of fine nichrome wire were used.

Dimensions: 16 cm x 12 cm x 7 cm case with 7.5 cm x 7 cm x 6 cm heat sink protruding on one side
Weight: approximately 1250 grams
Temperature: up to 30 deg C below ambient
Power supply: 12V 12A for the Peltier module, 8.4V 1.5A for the camera

To view other my other DSLR modification projects, follow the links below:
August 2014 Modified Canon 450D DSLR for Astro-imaging (improved sealed chamber prototype)
March 2014 Modified Canon 450D DSLR for Astro-imaging (sealed chamber prototype)
February 2014 Modified Canon 1000D DSLR (Baader BCF filter replacement)
December 2013 Modified Canon 450D DSLR for Astro-imaging (custom-fabricated lens mount)
November 2013 Modified Canon 450D DSLR for  Astro-imaging (sealed chamber prototype)
February 2013 Modified Canon 450D DSLR for Astro-imaging

For DIY astronomy projects useful for astrophotography, click here.
For tutorials on how to get started with astrophotography, click here.
To visit my astrophoto gallery, click here.
To subscribe to this site, click here.

© Anthony Urbano (Manila, Philippines)

Modified Canon 450D DSLR (March 2014)

Modified Canon 450D DSLR (March 2014)
My most recent project: a camera that can take photos of deep space! It has special filters to make it more sensitive to galaxies and nebula, and operates at freezing temperatures to minimize sensor noise.

Shown in above is my most recent version of a TEC-cooled (Peltier) Canon 450D DSLR intended for astro-imaging. This one has been housed in rigid plastic case with custom-fabricated aluminum lens mount to accept standard Canon lenses and T-adapters. The camera’s stock filters (both the IR and the dust-cleaning filter) were replaced with a Baader UV-IR filter to optimize sensitivity to H-alpha wavelengths and also serve as the sealed chamber’s optical window. During operation, sensor temperature drops to 35 degrees C below ambient.

To view other my other DSLR modification projects, follow the links below:
August 2014 Modified Canon 450D DSLR for Astro-imaging (improved sealed chamber prototype)
March 2014 Modified Canon 450D DSLR for Astro-imaging (sealed chamber prototype)
February 2014 Modified Canon 1000D DSLR (Baader BCF filter replacement)
December 2013 Modified Canon 450D DSLR for Astro-imaging (custom-fabricated lens mount)
November 2013 Modified Canon 450D DSLR for  Astro-imaging (sealed chamber prototype)
February 2013 Modified Canon 450D DSLR for Astro-imaging

For DIY astronomy projects useful for astrophotography, click here.
For tutorials on how to get started with astrophotography, click here.
To visit my astrophoto gallery, click here.
To subscribe to this site, click here.

© Anthony Urbano (Manila, Philippines)

Cooled DSLR with custom-fabricated Canon lens mount

Shown below is my most recent version of a TEC-cooled (Peltier) Canon 450D DSLR intended for astro-imaging. This one has been housed in an aluminum case with custom-fabricated aluminum lens mount to accept standard Canon lenses and T-adapters. The camera’s stock filters (both the IR and the dust-cleaning filter) were replaced with a Baader UV-IR filter to optimize sensitivity to H-alpha wavelengths and also serve as the sealed chamber’s optical window. During operation, sensor temperature drops to 35 degrees C below ambient.
Eteny_Canon450D_Dec2013

To view other my other DSLR modification projects, follow the links below:
August 2014 Modified Canon 450D DSLR for Astro-imaging (improved sealed chamber prototype)
March 2014 Modified Canon 450D DSLR for Astro-imaging (sealed chamber prototype)
February 2014 Modified Canon 1000D DSLR (Baader BCF filter replacement)
December 2013 Modified Canon 450D DSLR for Astro-imaging (custom-fabricated lens mount)
November 2013 Modified Canon 450D DSLR for  Astro-imaging (sealed chamber prototype)
February 2013 Modified Canon 450D DSLR for Astro-imaging

For DIY astronomy projects useful for astrophotography, click here.
For tutorials on how to get started with astrophotography, click here.
To visit my astrophoto gallery, click here.
To subscribe to this site, click here.

© Anthony Urbano (Manila, Philippines)

TEC (Peltier)-cooled Canon 450D DSLR

TEC (Peltier)-cooled Canon 450D DSLR
TEC (Peltier)-cooled Canon 450D DSLR

Here’s an upgrade of my previous TEC-cooled 450D project. It uses a cold copper plate mounted directly at the back of the imaging sensor, which is then cooled by a stack of 2 Peltiers, one being more powerful than the other (40 mm and 30 mm modules). Non-electrically conductive thermal paste (Zalman) has been used to promote effective heat transfer and yet avoid electrical hazard.  A12V 12A DC adapter powers the fan, Peltiers, and the heater.  A standard Canon adapter powers the camera. Read more.

To view other my other DSLR modification projects, follow the links below:
August 2014 Modified Canon 450D DSLR for Astro-imaging (improved sealed chamber prototype)
March 2014 Modified Canon 450D DSLR for Astro-imaging (sealed chamber prototype)
February 2014 Modified Canon 1000D DSLR (Baader BCF filter replacement)
December 2013 Modified Canon 450D DSLR for Astro-imaging (custom-fabricated lens mount)
November 2013 Modified Canon 450D DSLR for  Astro-imaging (sealed chamber prototype)
February 2013 Modified Canon 450D DSLR for Astro-imaging

For DIY astronomy projects useful for astrophotography, click here.
For tutorials on how to get started with astrophotography, click here.
To visit my astrophoto gallery, click here.
To subscribe to this site, click here.

© Anthony Urbano (Manila, Philippines)

Canon 450D DSLR Modification

Noise associated with warm sensor temperatures during long-exposure shots usually has an effect of turning a supposedly black region into noisy and grainy one. In a typical DSLR, thermal noise is further increased since a DSLR’s imaging sensor heats up during exposure, thus, causing its temperature to reach up to 10 deg C above ambient (sensor temperature reaching up to 35 to 40 deg C). By cooling down the sensor, it is possible to eliminate or somehow minimize this thermal noise.

eteny_450D (27)
Filter modified (Baader BCF) and Peltier-cooled Canon 450D

In this project, I will describe how I modified my Canon 450D DSLR to become a dedicated astronomical camera, with all functions intact including the auto-focus capabilities, and thus, may still be used for non-astronomical purposes. Read more.

To view other my other DSLR modification projects, follow the links below:
August 2014 Modified Canon 450D DSLR for Astro-imaging (improved sealed chamber prototype)
March 2014 Modified Canon 450D DSLR for Astro-imaging (sealed chamber prototype)
February 2014 Modified Canon 1000D DSLR (Baader BCF filter replacement)
December 2013 Modified Canon 450D DSLR for Astro-imaging (custom-fabricated lens mount)
November 2013 Modified Canon 450D DSLR for  Astro-imaging (sealed chamber prototype)
February 2013 Modified Canon 450D DSLR for Astro-imaging

For DIY astronomy projects useful for astrophotography, click here.
For tutorials on how to get started with astrophotography, click here.
To visit my astrophoto gallery, click here.
To subscribe to this site, click here.

© Anthony Urbano (Manila, Philippines)

Peltier-Cooled Filter-Modified Canon 450D

I look forward to a great and more productive year ahead, especially that this season’s long vacation finally gave me ample time to upgrade my gear and work on my most ambitious project to date: a Peltier-cooled filter-modified Canon 450D DSLR.

Canon450D_BaaderBCF_Peltiercooling
My first prototype of a thermo-electric cooling system (or the Peltier module). I intend to use this module to cool down the sensor of my filter-modified DSLR to minimize noise. So far I was able to lower the temperature to 12 deg C, from an ambient of 33.2 deg C. This is still a work-in-progress.

To view other my other DSLR modification projects, follow the links below:
August 2014 Modified Canon 450D DSLR for Astro-imaging (improved sealed chamber prototype)
March 2014 Modified Canon 450D DSLR for Astro-imaging (sealed chamber prototype)
February 2014 Modified Canon 1000D DSLR (Baader BCF filter replacement)
December 2013 Modified Canon 450D DSLR for Astro-imaging (custom-fabricated lens mount)
November 2013 Modified Canon 450D DSLR for  Astro-imaging (sealed chamber prototype)
February 2013 Modified Canon 450D DSLR for Astro-imaging

For DIY astronomy projects useful for astrophotography, click here.
For tutorials on how to get started with astrophotography, click here.
To visit my astrophoto gallery, click here.
To subscribe to this site, click here.

© Anthony Urbano (Manila, Philippines)

Moon-Venus Close Pairing November 11, 2012

Close-pairing of the moon and the planet Venus visible in the eastern horizon at around 5 am on November 11, 2012, captured with a Canon 450D and a 50 mm f/1.8 lens. Photo Credit: Anthony Urbano

Related Link: Celestial Grouping

For featured photos, click here.
For tutorials on how to get started with astrophotography, click here.
For DIY astronomy projects useful for astrophotography, click here.
To subscribe to this site, click here.

© Anthony Urbano (Manila, Philippines)