Jupiter Time Lapse from Deepak Dogra on Vimeo.
Time-lapse film of Jupiter taken through a telescope. Eyepiece projection method, through a Celesron 4’’ maksutov, 1325mm focal length, 15mm eyepiece, Nikon D90. 3 hour duration, taken at intervals of 10 minutes. Each frame is a ‘stack’ of 25-30 still images. Aligned and stacked manually in Photoshop. Jupiter's moon Io can also be seen as it comes in front of the planet, followed by its shadow.
part of a project on tourist photographers found at various tourist destinations around India. your photographs are sent to you by post without the postage stamp to make sure the postman delivers it to you as he can claim the postage money. with their livelihood under threat from technology, most are looking for other work, while few have shifted to digital cameras and portable printers.
some very old advertising stuff. press ads for htcricket.com(Ogilvy, New Delhi). other credits: Hemant Anant Jain. published in Luerzer’s Archive. outdoors for the launch of Satyam cinema(Ogilvy, New Delhi). illustrations: Pavan Buragohain. OBIE finalist. press ads for a golf tournament organized by Hindustan Times(Ogilvy, New Delhi) other credits: Ajay Gahlaut. press ad for Hyundai(Saatchi & Saatchi, New Delhi) other credits: Hemant Anant Jain. outdoor for Sony Xplod car audios(Saatchi & Saatchi, New Delhi) other credits: Hemant Anant Jain
one of my photographs made it to the Best of Show exhibition of the International Photography Awards in New York. 45 images were selected from the many winners at the competition which included some great photographers.
managed to shoot Jupiter thanks to some good clear skies in Delhi and Jupiter being at a favourable position in the sky. three of Jupiter’s moons can be seen in the first photo while in the second photo the Great red spot can be seen at bottom left, while the shadow of Io(moon) can be seen centre left. shooting the planets requires really high magnification. the effective focal length of the setup in this case would be around 3000-3500mm achieved with a process which involves projecting the image through the telescope eyepiece directly onto the camera sensor, with the camera lens removed. this is not a single shot but a ‘stack’ of many separate exposures. the process improves the signal to noise ratio by reducing the random digital noise and adding the light signals which can be then improved digitally. technical stuff: eyepiece projection method with a Celestron 4-inch Maksutov telescope. focal length 1325mm. Eyepiece 15mm. distance of the eyepiece from the camera sensor about 7-8cms. Nikon D90. stacked 20 stills of 1/10sec at 800ISO.