EXCERPT page containing first few paragraphs. 2024-04-16 07:29:05
UA_SEARCH_BOT_null @ 18.216.114.23
For full access, subscribe here. Or click title to login. 
Overview of Canon 200-400mm f/4L IS
The Canon 200-400mm f/4L IS (about $11799) is a versatile super-telephoto zoom lens with a built-in 1.4X extender, so it is more properly called a 200-400mm X 1.4X zoom; the extender applies against the entire zoom range. Image quality is likely to be best when the extender is applied to extend the range, hence one might call it a 200-400mm + 400-560mm zoom. To go beyond 400mm, one would set the lens to ~280mm and then flip in the 1.4X extender.
The convenience of having the 1.4X extender built-in is a remarkable thing in the field, much more convenient than pocketing and extender and having to release the camera, attach the extender then attach the camera again. This is a big time-saver for photography where the subject changes distance frequently or in unpredictable ways.
Article continues for subscribers...
Diglloyd Advanced DSLR is by yearly subscription. Subscribe now for about 16 cents a day ($60/year).
BEST DEAL: get full access to ALL 8 PUBLICATIONS for about 75 cents a day!
Diglloyd DAP is DSLR-oriented, but also contains workflow and other topics. Much of the focus is on Canon and Nikon but also Pentax and Pentax medium format.
Special emphasis is placed on lens evaluation, focusing on Canon and Nikon and Sigma lenses, but with a few others like Rokinon/Samyang.
- Make better images by learning how to get the best results right away.
- Save money by choosing the right lens for your needs the first time, particularly some of the new Sigma Art lenses vs Nikon and Canon.
- Workflow discusses image organization, raw conversion and post processing. Many examples show processing parameters for direct insight into how the image was converted.
- Jaw-dropping image quality found nowhere else utilizing Retina-grade images up to full camera resolution, plus large crops [past 2 years or so].
- Real world examples with insights found nowhere else. Make sharper images just by understanding lens behavior you won’t read about elsewhere.
- Aperture series from wide open through stopped down, showing the full range of lens performance and bokeh.
- Optical quality analysis of field curvature, focus shift, sharpness, flare, distortion, and performance in the field.
Want a preview? Click on any page below to see an excerpt as well as extensive blog coverage, for example on Nikon or on Canon or on Pentax.
