Category Archives: Master Class

The Shadow Knows

When the conditions are right, such a clear blue sky, your 360-degree image may contain a shadow of the camera and tripod. Therefore, you should try to place the camera and tripod to avoid the shadow, minimize the shadow, or … Continue reading

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360° Imaging

For the last 2 months, I have been involved with 360° imaging for e-commerce. I have been working with Joshua Tree Depot and Ashley Karic to produce 360° product images. This Joshua Tree Depot blog post highlights some of my early … Continue reading

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Entrance Pupil Measurement of the Voigtlander 10 mm

The Voigtlander 10 mm lens does not come with any manufacturer data regarding the position of the entrance pupil. However, being an extreme wide-angle lens the entrance pupil must be very close to the front of the lens. Following the … Continue reading

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Measuring the Entrance Pupil Of the Zeiss Loxia Lens Series

This article is to support the entrance pupil measuring technique outlined in Measuring the Entrance Pupil. Zeiss provides entrance pupil data for the Loxia 21, 35, 50, and 85 mm lenses- see the Zeiss EP data in Table 1. Zeiss gives … Continue reading

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Entrance Pupil Calculator

Before continuing and demonstrating the method outlined in my article Measuring the Entrance Pupil, I first need to introduce the calculator I use to determine the entrance pupil position.

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Measuring The Entrance Pupil

Introduction In The Entrance Pupil And Its Importance,  it was demonstrated that a requirement for high-quality image stitching was knowing the position of the entrance pupil. How do you find the entrance pupil? An educated guess will sometimes suffice, as the … Continue reading

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Panorama Number of Shots Calculator

This calculator is used to determine the number of shots in the horizontal and vertical for a panorama. The user inputs the sensor size, lens focal length, % of frame overlap, horizontal rotation, and the vertical rotation.

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