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.
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.
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