We are a group of photography enthusiasts who are passionate about anything of photography, in particulary, water drop photography, high speed photography, and macro photography.

Our passion about photography does not stop at photographying the world, we are actively inventing, building tools to further ultilize modern technologies to explore and advance photographical techniques.

Focus stacking is a powerful method to extend depth of field by taking a series of images at different focal plane and use computer software to pick the sharpest part of each image for the final result. One way to acquire such series of images is by moving the camera towards or away from the subject (or by moving subject towards or away from the camera) so that different part of the subject will be in focus in each image. Then by applying computer algorithm, these images will be combined into one sharp image.

In order to move the camera (or the subject for that matter) and automate the process of image captures, an automated rail system is preferred method. However, current products on the market are extremely expensive and many macro photographers have to do it manually which is a tedious work to do. Besides expensive rail system, good stacking software are either expensive (but really good) or difficult to use (though free).

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Using Microscope Infinite Objective On DSLR Camera

TWO VERY IMPORTANT NOTES:

1. The tube lens (prime or zoom) MUST focus to infinity.
2. Keep the tube lens wide open to ensure highest quality.

This video shows how to mount a microscope infinite objective onto a DSLR camera. Infinite objective requires a tube lens that focuses parallel light ray from it on to an image plane, in this case, the image sensor of the DSLR.

You can use a zoom lens as tube lens as long as the zoom is set to the focal length of the required tube lens by the objective. Often, a prime lens of appropriate focal length is better choice as tube lens as some zoom lens does not provide good quality. If the focal length of the prime (or zoom) is different from the required tube lens focal length, magnification will change and it is possible to have vignetting if the prime (or zoom)'s focal length is much less than the required tube lens focal length. In this video, the particular objective requires 180mm tube lens focal length, therefore, the zoom is set to approximately 180mm.

See our shop for the RMS adapter and 4x and 10x objectives

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