Sky at Night - markhumpage
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Festive StarTrail, Dec 4th 2013. First star trail shot with the Olympus E-M1 & 12mm prime (post firmware update). Just over 4hrs of 10s exposures shot continuous (no in-camera noise reduction dark frame subtraction), F2.0 ISO 250. 4.5 hrs from a single battery (BLN-1) shooting continuous which is excellent. Approx 1400 No exposures combined with stacking software (StarStax) to produce the final composite showing Earths spin through the stars. Must say I'm very impressed with the low light/noise quality of the image.Yes it's only 10s and ISO 250 but no noise reduction and very clean. I'd say leaps better than E5 and on a par with E-M5 compared to similar images taken with both. The hardest work on this image was removing the plane trails....

How did I capture it? - Camera on tripod with setting above. Manual focus set to infinity I framed the property (my home) knowing the polaris (north star) around which all other stars spin was located above roof far right. The first shot was captured/exposed through the lcd screen and then using the remote cable (set to lock) and turning off lcd (maximise battery) I depressed shutter. This allowed the camera to shoot continuous all night (at least until the battery died). To prevent the lens from fogging/dew forming I strapped my DIY dew shield around the lens (Zippo hand warmer). Once the camera battery had died I transferred all images (High res JPEG) to MAC and imported/stacked in StarStax software. Plane trail removed using Pixelmator software. Voila :-)

Festive StarTrail, Dec 4th 2013. First star trail shot with the Olympus E-M1 & 12mm prime (post firmware update). Just over 4hrs of 10s exposures shot continuous (no in-camera noise reduction dark frame subtraction), F2.0 ISO 250. 4.5 hrs from a single battery (BLN-1) shooting continuous which is excellent. Approx 1400 No exposures combined with stacking software (StarStax) to produce the final composite showing Earths spin through the stars. Must say I'm very impressed with the low light/noise quality of the image.Yes it's only 10s and ISO 250 but no noise reduction and very clean. I'd say leaps better than E5 and on a par with E-M5 compared to similar images taken with both. The hardest work on this image was removing the plane trails....

How did I capture it? - Camera on tripod with setting above. Manual focus set to infinity I framed the property (my home) knowing the polaris (north star) around which all other stars spin was located above roof far right. The first shot was captured/exposed through the lcd screen and then using the remote cable (set to lock) and turning off lcd (maximise battery) I depressed shutter. This allowed the camera to shoot continuous all night (at least until the battery died). To prevent the lens from fogging/dew forming I strapped my DIY dew shield around the lens (Zippo hand warmer). Once the camera battery had died I transferred all images (High res JPEG) to MAC and imported/stacked in StarStax software. Plane trail removed using Pixelmator software. Voila :-)

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