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HomePhotographyAdvance in digital zoom technology breathes new life in small lenses

Advance in digital zoom technology breathes new life in small lenses


The shot was installed on an OM1 mark II camera on an Olympus 75–300 mm lens, working on 1200 mm with the internal digital teleconverted of the camera.

Although not heavily publicized by the manufacturers, the digital zoom feature included in many recent camera models has improved significantly because it was first introduced in mid -2010. The initial versions were raw, just enhanced a portion of data of the sensor without additional processing. As a result, images for poor expansion and heavy artifacts were widely criticized – and this reputation is still gender.

In recent years, however, manufacturers – now often refer to convenience as “digital teleconverter” – he refined his JPEG processing engines. Companies such as Fujifilm and OM system (East Olympus) now enable their cameras output cropped, upskled JPEG to surprisingly high quality. These systems typically include selected magnification factors such as 1.4X and 2x. The OM system has continued to increase its digital teleconverting work in cameras like OM -1 Mark II, OM -5 and OM -3.

Showing a black OM system with a 12–100 mm lens, the details of the close-up of the Digital camera, the camera body, button and the description of the textured grip against a white background.
OM System OM-1 Mark II with an Olympus 75-300 mm lens.

For example, the current OM-1 Mark II includes a built-in digital teleconverter that cropped JPEG on 2x magnification. The quality of these JPEG (not raw) images is unexpectedly strong, with effective in-camera sharp and noise deficiency.

This feature adds new access to low lenses. For example, $ 399 om system M.Zuiko 75-300mm f/4.8–6.7 II provides a focal length equal to 35 mm of 600 mm with OM-1 mark II with micro for third lens. When the digital 2x converter is enabled, it effectively reaches 1,200 mm.

Although the results cannot match the image quality of the top professional telephoto lenses – many of which cost 276% to 1,780% more – output is more than enough for social media or web display. Purists can object, but I am the owner of the OM System 150–400 mm f/4.5 and 100–400 mm f/5.0–6.3 lens, and when compressed in 72 DPI webp format for online use, most of their better resolution is lost. In low performance sizes, the difference between digital converter and optical zoom becomes very less noticeable.

If you have OM-1 Mark II and an OM System 75-300 mm F/4.8–6.7 II lens, then it is mentioned here how to test this 1,200 mm telephoto setup:

Set JPEG quality on large super fin (LSF). (RAW is not supported with Digital Teleconverter.)

Set the ISO as low as light permission.

Navigate on the M2 camera menu, then on its second screen.

Turn on digital teleconverted function.

The image shown in Viewfinder or LCD will now reflect the final 1,200 mm JPEG output.

In full zoom, F/6.7 maximum aperture requires strong lighting, so less ISOs are the best. JPEG will usually look directly fine from the camera, but if the noise is noticeable, post-processes using topaz or any other danoizing utility.

There are several samples of 1,200 mm shots on this webpage that I recently took in a local park. He was occupied by a sunny day in the ISO 200. OM -1 Mark II processed the IN -Camra to 5,184 by 3,888 pixels at 350 DPIs. In Photoshop, I reduced them from 1,200 to 900 in 72 DPIs for this web story. Pictures display the level of sharpness obtained at 1,200 mm using this technique.

A Canada Guju stands in shallow water, showing its brown body, white underparts and specific black head and neck with a white cheek patch. Green leaves blur the edges of the natural view.

A tortoise with a pattern shell and red bandage partially immersed in water on a log on her head, spreads her neck and looks upwards. The water around the turtle is cool with soft waves.

With a blurred background of green leaf, a black bird with a red and yellow patch on your wing papers on a confusion of brown and green leaves. Its beak is open, such as calling or singing.

A drunkard sits on the green grass, yellow and brown cows, looking at the right. The background shows blurred leaves and soil.

Two male malad ducks with green head and brown chest stand on a wooden dock next to a cool body of water, their orange legs appear.

A Mallad duck rests on the ground surrounded by green plants, with its body away and its head was slightly stuck. The sun exposes its brown, black and rainbow blue wings.


About the author: Hoag Lewins is an editorial multimedia manufacturer at the University of Pennsylvania and Philadelphia, Manhattan and Washington, DC have a former staff reporter and photographer at newspapers and mainstream web news sites in DC, you can get more information about their work. Their website


Image Credit: Photograph by Hoag Lewins



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