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Canon RF 100-400mm F5.6-8 IS USM Overview



Introduction

The Canon RF 100-400mm F5.6-8 IS USM is a compact, light-weight and reasonably priced super-telephoto zoom lens for Canon EOS R full-frame mirrorless cameras that will not break the financial institution.

It options 12 components in 9 teams, together with one aspherical aspect to assist management distortion and one Extremely Low Dispersion aspect to cut back chromatic aberrations, and it has a Tremendous Spectra Coating to assist cut back flare and ghosting.

This lens has a 9 blade diaphragm which creates a gorgeous blur to the out-of-focus areas of the picture.

It is outfitted with an optical Picture Stabilizer that gives 5.5 stops of built-in stabilisation, or 6-stops when used with the EOS R5 and EOS R6 cameras.

An inside focusing mechanism means the lens barrel does not transfer, and it provides a powerful minimal focusing distance of 88cm / 34.6″ and a most magnification ratio of 0.41x, while utilizing value efficient 67m filters.

There is a configurable management ring on the lens barrel which lets you shortly change the publicity compensation, shutter velocity, aperture and ISO settings.

This lens can be suitable with the RF 1.4x and 2x extenders with no limitations on the zoom vary, providing focal ranges of 140mm – 560mm and 200mm – 800mm respectively.

The Canon RF 100-400mm F5.6-8 IS USM lens is obtainable now priced at £699 / $649 within the UK and the US, respectively.

Ease of Use

Canon RF 100-400mm F5.6-8 IS USM

Canon RF 100-400mm F5.6-8 IS USM

Weighing in at 635g / 22.4 ounces and measuring 16.5cm in size (when set to the 100mm focal size), the RF 100-400mm F5.6-8 IS USM is a surprisingly compact and comparatively light-weight lens given the massive focal vary of 100-400mm that is on provide.

It does not really feel in any respect unbalanced when utilizing it with a mid-sized digicam physique just like the Canon EOS R6 physique that we examined it with, as proven within the product photographs, even with no battery grip fitted.

The lens extends additional by a further 8.5cm to achieve a complete size of 25cm when totally zoomed out to 400mm.

Canon RF 100-400mm F5.6-8 IS USM
Canon RF 100-400mm F5.6-8 IS USM

The RF 100-400mm is barely shorter than the same RF 100-500mm F4.5-7.1L IS USM by about 4cms, however crucially its a lot, a lot lighter than its longer, quicker cousin, which weighs in at a whopping 1530g.

Construct high quality is excellent for what’s in spite of everything a non L-series lens. Regardless of its principally plastic building, the RF 100-400mm F5.6-8 IS USM feels stable in your hand, and it commendably has a metallic mount.

Be aware that this lens doesn’t have a weather-resistant design to assist defend it towards mud and moisture.

Canon RF 100-400mm F5.6-8 IS USM
Canon RF 100-400mm F5.6-8 IS USM

There are two switches on the left hand aspect of the RF 100-400mm F5.6-8 IS USM lens. The highest one is a swap for selecting between auto-focusing and handbook focusing. The underside one is a swap for turning picture stabilisation on or off.

The built-in 5.5 stops of picture stabilisation are necessary when hand-holding such an extended lens, and the system fortunately works very properly, guaranteeing which you could shoot at slower shutter speeds than 1/four-hundredth and nonetheless get sharp outcomes (clearly relying in your approach).

That is particularly necessary on the older EOS R and RP cameras, which lack the extra in-body stabilisation provided by the newer EOS R5 and R6, which subsequently additional improve the RF 100-400mm F5.6-8 IS USM’s personal stabilizer, though solely by an additional half cease to six stops in whole.

Canon RF 100-400mm F5.6-8 IS USM
Canon RF 100-400mm F5.6-8 IS USM

The Lock operate swap is a helpful characteristic that helps defend the lens. Set the focal size to 100mm and transfer it to the Lock place to stop the zoom mechanism from creeping when the digicam is pointed down or in storage.

On the finish of the lens is the slim management ring. As on most different Canon RF lenses, this can be utilized to regulate sure key digicam settings (TV, AV, ISO and publicity settings).

The fly-by-wire handbook focusing ring is pretty slim however it’s ridged that can assist you to get a firmer grip on it.

Canon RF 100-400mm F5.6-8 IS USM
Canon RF 100-400mm F5.6-8 IS USM

There are additionally no arduous stops at both finish of the ring that can assist you know when the minimal or most focusing distance has been achieved.

Be aware that this lens usefully provides full-time handbook focusing even when AF is chosen.

Polariser customers ought to be happy that the wise 67mm filter thread does not rotate on focus.

Canon RF 100-400mm F5.6-8 IS USM

Auto-focusing with the Canon RF 100-400mm F5.6-8 IS USM and the EOS R6 digicam proved to be fast, quiet and correct for almost all of the time.

The Twin Nano USM auto-focusing system makes use of each a hoop sort USM and an STM mechanism to ship quick, practically silent autofocus efficiency with full-time handbook focus override within the one-shot AF mode.

The lens can be very quiet, making it ideally suited for discreet conditions, resembling on safari or for birding, in addition to to be used whereas filming movies.

Canon RF 100-400mm F5.6-8 IS USM
Canon RF 100-400mm F5.6-8 IS USM

We did not expertise an excessive amount of “searching” in any respect, both in good or dangerous mild, with the lens precisely focusing nearly the entire time, because of the excellent low-light capabilities of the EOS R cameras.

There’s a petal formed lens hood (EW-74B) and a comfortable case (LP1224) accessible for this lens, however disappointingly each are elective extras that are not included within the field.

Canon RF 100-400mm F5.6-8 IS USM
Canon RF 100-400mm F5.6-8 IS USM
Canon RF 100-400mm F5.6-8 IS USM
Canon RF 100-400mm F5.6-8 IS USM
Canon RF 100-400mm F5.6-8 IS USM
Canon RF 100-400mm F5.6-8 IS USM

Focal Vary

The Canon RF 100-400mm F5.6-8 IS USM’s focal vary offers an angle of view of 24° at 100mm and 6° 10′ at 400mm.

Canon RF 100-400mm F5.6-8 IS USM

100mm

Canon RF 100-400mm F5.6-8 IS USM

200mm

Canon RF 100-400mm F5.6-8 IS USM

300mm

Canon RF 100-400mm F5.6-8 IS USM

400mm

Chromatic Aberrations

Chromatic aberrations, usually seen as blue or purple fringes alongside contrasty edges, weren’t particularly obvious in our take a look at photographs, solely showing in very excessive distinction areas.

Canon RF 100-400mm F5.6-8 IS USM
Canon RF 100-400mm F5.6-8 IS USM

Vignetting

With the Canon RF 100-400mm F5.6-8 IS USM lens set to its most aperture, there may be some mild fall-off within the corners, which you may must appropriate in post-processing. That is way more obvious within the Uncooked recordsdata than the JPEGs.

Canon RF 100-400mm F5.6-8 IS USM

100mm / JPEG

Canon RF 100-400mm F5.6-8 IS USM

100mm / RAW

Canon RF 100-400mm F5.6-8 IS USM

400mm / JPEG

Canon RF 100-400mm F5.6-8 IS USM

400mm / RAW

Distortion

There’s some delicate pin-cushion distortion at both finish of the focal vary in each the JPEG and Uncooked recordsdata, nevertheless it’s not too pronounced.

Canon RF 100-400mm F5.6-8 IS USM

100mm

Canon RF 100-400mm F5.6-8 IS USM

200mm

Macro

The Canon RF 100-400mm F5.6-8 IS USM provides a minimal focusing distance of 88cm / 34.6″, with a most magnification of 0.41x. This allows you to seize some good macro photographs when taking pictures on the 400mm focal size.

Canon RF 100-400mm F5.6-8 IS USM
Canon RF 100-400mm F5.6-8 IS USM
Canon RF 100-400mm F5.6-8 IS USM
Canon RF 100-400mm F5.6-8 IS USM

Bokeh

Bokeh is a phrase used for the out-of-focus areas of {a photograph}, and is often described in qualitative phrases, resembling clean / creamy / harsh and many others.

Within the RF 100-400mm F5.6-8 IS USM lens, Canon have employed an iris diaphragm with 9 rounded blades, which mixed with the somewhat gradual most apertures ends in pretty good bokeh in our view.

We do realise, nevertheless, that bokeh analysis is subjective, so we have included a number of examples under on your perusal.

Canon RF 100-400mm F5.6-8 IS USM
Canon RF 100-400mm F5.6-8 IS USM
Canon RF 100-400mm F5.6-8 IS USM
Canon RF 100-400mm F5.6-8 IS USM
Canon RF 100-400mm F5.6-8 IS USM
Canon RF 100-400mm F5.6-8 IS USM
Canon RF 100-400mm F5.6-8 IS USM

Canon RF 100-400mm F5.6-8 IS USM

Canon RF 100-400mm F5.6-8 IS USM

Sharpness

With a view to present you the way sharp the Canon RF 100-400mm F5.6-8 IS USM lens is, we’re offering 100% crops on the next pages.

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