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The following opinions have been automatically translated with Microsoft Translator. | Samyang AF 85mm f/1.4 EF Pros: excellent value for money, solid construction, quite compact and lightweight, good image quality, mind-blowing bokeh Cons: no optical stabilizer, annoying manual focus (at least early days), poor quality of the hood and lens cover cap Opinion: the AF 85mm f/1.4 Samyang EF (Canon version) is one of the best lenses a low-budget photoamator can buy, definitely a must-have for portrait painters. Aesthetic optics are very essential, but the construction quality and solidity strike immediately. Although quite small in size, the ergonomics are excellent, too bad only that Samyang wanted to save on lampsheds and lens covers, both of very questionable construction quality. In my opinion, the choice of the 77mm filter diameter is excellent, corresponding to that of many Canon L-series lenses that could ideally be accompanied by quality. As you might expect from a portrait lens with f/1.4 opening, the bokeh is excellent and the out-of-focus areas very soft, as if to create study backdrops: the nine slats make very well at maximum opening. There is no significant distortion for a purely portraiture lens, but if it is used for architectural purposes, or where you still feel the need, it is correctable by setting the appropriate Photoshop tool to the +0.3 factor. The vignetting is quite visible but is already disappearing by closing the diaphragm to f/2.8, not forgetting that the drop in brightness at the edges is one of the aspects most easily corrected in post production. Autofocus uses an ultrasonic linear AF motor that is quite fast and quiet, although its accuracy is a function of the quality with which the single model was assembled: fortunately I have a successful one, but there are cases of front/back focus; for manual focus the lens has a "focus-by-wire" system similar to Canon's STM. sent on March 22, 2021 |
 | Canon EF 70-200mm f/4.0 L USM Pros: Sharpness, auto-focus speed, quality / price ratio Cons: Lack of tropicalization Opinion: As I got to write in the comments of another ubiquitous zoom of the house, fortune and popularity of the Canon EF 70-200 f / 4 L USM consist of a mix of quality (fluorite lens with Super Spectra coating, which ensure excellent reduction of the aberrations and, above all, the so-called effect "ghost"), versatility (wide zoom range, low weight, good brightness) and, of these factor absolutely not secondary Rates, prezzo.rnLe autofocus performance are outstanding: so quiet as to be almost imperceptible, with a capture rate of fire even better than many of its "big brothers" .rnLa sharpness is the greatest strength of this beautiful lens, very good on the whole trip ( length) focal even at full aperture; Excellent blurred, despite the maximum aperture of f / 4 can not rival the brightest optics by diaphragms much more ù practically non-existent chromatic ampi.rnAberrazione, except for a very slight event in step of tonal areas of high contrast; excellent resistance to flare even in bright backlight. The lens construction is very accurate; particularly the use of fluoride lenses and the special Super Spectra ensure the almost complete absence of glare and "ghosting" attributable to the reflection of light on the sensor fotocamera.rnLa longevity of this view, in production since 1999 thus it derives from the construction quality and its versatility of use, but that does not make it immune to a single criticism: missing tropicalization, critical to make it absolutely essential in any corredo.rn sent on October 03, 2016 |
 | Canon EF 24-105mm f/4 L IS USM Pros: Tropicalization, sharpness, price Cons: Vignetting, chromatic aberration, flare resistance Opinion: Luck and the popularity of the Canon EF 24-105 F4L IS USM consist of a mix of: quality (goal tropical conditions by the build quality of the highest level), versatility (wide zoom range, image stabilization, good brightness) and - last, but not least! - Prezzo.rnLe autofocus performance are quality: extremely quiet and with a capture rate of the highly respected fire. The sharpness is kept good over the entire focal length even at full aperture, even if the corners of the frame tend to be more and more soft and kneaded with respect to the center; it should be clarified that in practical use this slight softness to the edges is absolutely not problematic and does not preclude obtaining excellent immagini.rnLa lens allows you to get a good blur when used to the far longer than its focal length, that is, beyond the 70-80mm, albeit not to the optical results much brighter and diaframmthe broadest maximum: even at f / 4 you can get a good bokeh, provided you focus on a subject vicino.rnPurtroppo enough suffers from a pronounced vignetting at 24mm and full aperture (also universally known fact) that improves only marginally, closing the diaphragm of a pair of stop; at longer focal extensions, the phenomenon is even quite low (even at f / 4), disappearing in fact to any focal length with aperture f / 5.6. rnUna moderate longitudinal chromatic aberration characterizes all focal lengths, especially evident at 24 mm, without creating serious problemi.rnLa resistance to flare is very good at wide-angle focal lengths, showing a slight decrease in performance to the upper reaches, easily compensated with a characteristic little 'attention in phase of conclusion ripresa.rnIn it is a lens of excellent quality, extremely versatile and by the excellent level of performance, a "glass" handyman to carry with you in the great majorityof cases. His most serious flaw, in my opinion, is the sharp drop in sharpness at the edges of the frame, the legacy of a build quality outdated ten years; what perhaps would make this lens by far the most attractive (and therefore more commercial) would be maximum f / 2.8 aperture: its new version will be presented to the public from next August 25 together with the new EOS 5D Mark IV, we'll see! rn sent on August 01, 2016 |
 | Canon 40D Pros: build quality, color representation, dynamic range, burst (JPEG), quality / affordable price Cons: the focusing system Live View, battery life Opinion: We are talking about a so-called "semi-professional" SLR, that is a digital machine which, on the one hand, can be seen as second body for a professional photographer (reportage, but also photos of weddings and photo studio), while the other allows fans demanding a quantum leap compared to the "entry level" to get something meglio.rnIl SLR camera body provides adequate protection against dust and sprays (although not tropical conditions) and also the cover for the slot access memory is well sealed; size and weight of the body are contained, the handle is comfortable and the SLR perfectly balanced. Despite the registry age, offers three put glasses of "only" 10 megapixel CMOS sensor fire intercambiabili.rnIl may seem inadequate by today's average standards, but are much more important fidelity in color representation and / or the ability & #8220; pierce "the shadows, showing the details and well represents the highlights. rnFino 800 ISO the response of the camera is excellent, both in terms of resolution and color than on the always thorny, of the disorder, with an amazing range dinamico.rnIl autofocus system does its job without infamy and without praise (remember that it is an old technology over ten years) and, provided you have a "fast" memory card, the burst working quietly at a rate of up to 6.5 frames per second, almost without limits using JPEG files but with a limit of about 15 images in sequence before the memory buffer appears clogged shooting in RAW.rnUnica real flaw mode, the use of Live View system: beyond the "black out" caused by the movement of the mirror using the autofocus system, with manual focus can instead take advantage of the adjustment "end" (magnification up to 10x) on any area of ??the screen. The mode & agrave; Live View operation always involves a rapid depletion of the battery (autonomy is reduced to about a quarter), making the purchase of Battery Grip dedicated almost mandatory (which I highly recommend) .rnIn conclusion, I consider the EOS 40D SLR semi professional high quality despite the long length of service, especially for the price, really interesting, allowing you to take home a lot more than what you could let guess the corresponding expenditure: does not mislead the lack of "frills" such as wi-fi, GPS, or touch-screen, totally unnecessary (if useless) for the execution of shots qualità.rn sent on July 25, 2016 |
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