Φακοί Canon RF mount

  • Αγαπητοί φίλοι

    Με ιδιαίτερη χαρά σας προσκαλούμε στην κοπή της πρωτοχρονιάτικης πίτας του AVClub για το 2026

    Την Κυριακή, 1/3/2025 και ώρα 13:30 στο εστιατόριο  "Το Ψαρονέφρι" θα πραγματοποιήσουμε την κοπή της Πρωτοχρονιάτικης πίτας μας για το 2026.

    Το εστιατόριο βρίσκεται στο Μαρούσι, Πέλικα 64, Τηλ.: 210 2824531

    Δηλώστε τη συμμετοχή σας εδώ, θα χαρούμε πολύ να σας δούμε από κοντά.

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Why I Sold My 70-200 F2.8 And Bought The F4 Version​

James Reader

Ηταν και το διλλημα που αντιμετωπισα οταν κληθηκα να αποφασισω αν θα παω στον πιο "επαγγελματικο" f2,8 αντι του πιο consumer friendly f4.
 
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Overview of the Canon RF F 2.8 Zoom Lenses​

CanonUSA


ισως οι πιο σημαντικοι για το συστημα φακοι που βγηκαν.
 
Όντως.

Επίσης σε περίπτωση που δεν το έχω αναφέρει ξανά, η Canon έχει το πιο φθηνό first party συνδυασμό φακών για τοπία (και όχι μόνο) με τους 15-30mm και 100-400mm με μεταβλητό διάφραγμα φυσικά. Αναλόγως την περίοδο αγορών με προσφορές κλπ ή μεταχειρισμένα σε άριστη κατάσταση το σετάκι αυτό μπορεί να βγει λίγο πάνω από 1.000 ευρώ με βάρος 1 κιλό, φουλ μαζεμένο με 67mm κοινό φίλτρο. Γενικά πολύ λουκούμι σετ.

Στο τσακίρ κέφι βάζεις και αυτόν τον 28-70mm και τέλος.
 
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Strengths:

  • Inexpensive and lightweight, making it appealing for everyday use.
  • Compact design allows for ease of handling and versatility on smaller camera bodies.
  • Bright f/1.2 aperture provides creative depth of field options.
Weaknesses:

  • Significant optical flaws including distortion and chromatic aberration.
  • Lacks important features like weather sealing and a lens hood, which may deter potential buyers.
  • Autofocus performance is not as smooth or fast as competitors, which may limit its effectiveness for action photography.




Pros:​

  • Affordability: Priced at $469, it’s significantly cheaper than other high-end RF lenses, making it accessible for many photographers.
  • Compact Design: Lightweight (346g) and compact (75mm length), ideal for travel and street photography.
  • Bright Aperture: The f/1.2 maximum aperture allows for excellent low-light performance and creative depth of field.
  • Control Ring: Customizable control ring can be assigned various functions for added versatility.
  • Decent Bokeh: Produces generally smooth bokeh, enhancing the quality of portrait shots.
  • Versatile Focal Length: 45mm focal length works well for a variety of photography styles, including portraits and general purpose.
  • Decent Build Quality: Although made from engineered plastics, it feels well-constructed with a metal mount.

Cons:​

  • Optical Flaws: Significant barrel distortion and chromatic aberration impact image quality.
  • Lack of Weather Sealing: Absence of weather sealing may limit usage in adverse conditions.
  • No Lens Hood Included: Additional cost for the lens hood may deter some buyers.
  • Autofocus Limitations: STM motor is not as fast or smooth as higher-end Canon autofocus systems, making it less suitable for action shots.
  • Corner Sharpness Issues: Soft corners and low contrast at f/1.2 can detract from image fidelity.
  • Low Maximum Magnification: Minimum focus distance of 45cm results in limited close-up capabilities.
  • Digital Corrections Required: Heavy reliance on digital corrections for distortion and vignette can impact image sharpness and quality.


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Canon RF 45mm F1.2 STM Review | Dream Lens or Nightmare?​

Dustin Abbott
 
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Introducing the Canon RF7-14mm F2.8-3.5 L FISHEYE Lens​



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Rudy Winston Introduces the Canon RF14mm L VCM Lens​


CanonUSA



Mερα ανακοινωσεων σημερα για τους δυο νεους φακους της εταρειας.
 
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Ιntroducing the Canon RF14mm F1.4 L VCM lens​


Canon Europe

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Fast As Light with the Canon RF14mm F1.4 L VCM Lens​


CanonUSA




 
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Το drop-in filter holder δεχεται τα ιδια φιλτρα με τον ef->rf adapter της canon κατι πολυ δελεαστικο για οσους απο τους χρηστες εχουν ηδη αυτον τον ανταπτορα μιας και αυτοματα βρισκονται με καλυμμενο το θεμα του φιλτρου που χρησιμοποιουν για landscape.
 
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Canon RF 24-105mm F2.8L IS Z Review | Canon Delivers the Dream?​


Dustin Abbott



Strengths:

  • Versatile zoom range (24-105mm) with constant F2.8 aperture.
  • Excellent image quality and sharpness across various focal lengths.
  • Advanced features such as Image Stabilization and dual Nano-USM focus motors, enhancing both stills and video shooting.
  • Robust construction with weather sealing and high-quality build.
Weaknesses:

  • High price point at approximately $3300, limiting accessibility for many photographers.
  • Larger and heavier than comparable lenses, affecting portability.
  • Requires digital corrections for distortion and vignette, which can impact image quality.
  • Aperture ring functionality limitations with earlier camera models can be frustrating.



Pros:​

  • Versatile Zoom Range: The 24-105mm focal length offers a dynamic range suitable for various photography styles, including landscapes, portraits, and event photography.
  • Constant F2.8 Aperture: The lens maintains a fast maximum aperture of F2.8 throughout its zoom range, allowing for excellent low-light performance and depth of field control.
  • Image Stabilization: Incorporates Optical Image Stabilization (up to 5.5 stops), which helps reduce camera shake, making it advantageous for handheld shooting.
  • Close-Focusing Capability: The lens can focus as close as 1.5 feet (0.45m) at all focal lengths, providing impressive magnification (0.29x) for detail-oriented shots.
  • Robust Build Quality: Constructed as an L-series lens, it features exceptional durability, dust- and water-resistant design, and a thick rear gasket for added protection against the elements.
  • Excellent Autofocus Performance: Dual Nano-USM motors provide fast and accurate focusing for both stills and video, enhancing usability in dynamic shooting environments.
  • Flare Resistance: Equipped with Canon’s Air Sphere Coating (ASC), the lens demonstrates good resistance to flare and ghosting, maintaining contrast and color fidelity in challenging lighting.
  • Smooth Zoom Mechanism: The internally zooming design keeps the length consistent during zooming, which is particularly useful for video work and maintaining balance.
  • Customizable Control Ring: The front control ring can be programmed for various functions, offering versatility and convenience tailored to individual shooting preferences.
  • High Image Quality: The optical design produces consistently strong sharpness and contrast throughout the zoom range.
  • Good Bokeh: The lens produces aesthetically pleasing out-of-focus areas, making it suitable for portraiture and other creative applications.

Cons:​

  • High Price Point: At around $3300, it is significantly more expensive than the F4 version, which may be a barrier for many photographers.
  • Size and Weight: Weighing approximately 1300g and measuring 199mm in length, the lens is considerably bulkier than its F4 counterpart, posing challenges for extended handheld use or travel.
  • Digital Corrections for Distortion: The lens requires digital corrections for distortion and vignetting, which can negatively impact sharpness and image quality if corrections are not applied during processing.
  • Aperture Ring Limitations: The aperture ring functions inconsistently across different camera models, particularly older ones, where it may be non-operational in stills mode.
  • Limited Popularity of Power Zoom Adapters: While the lens is compatible with Power Zoom adapters, user reviews indicate that these accessories are not widely embraced due to ergonomic issues and high costs.
 
Ναι, αφού ο Canon βασίζεται πολύ στην ψηφιακή διόρθωση παραμόρφωσης - βινιέτας ενώ ο Sigma όχι τόσο. Αντιλαμβάνομαι ότι αυτός είναι ο συνηθισμένος τρόπος σχεδίασης φακών πλέον αλλά απ΄ όσο έχω δει και από άλλους φακούς σχεδόν πάντα κάτι χάνεται από το έντονο τέντωμα στα άκρα. Ειδικά δε για αστροφωτογραφία η διαφορά είναι εμφανής, για όποιον είναι κάπως πιο ψείρας. Άλλωστε ο Sigma σχεδιάστηκε έτσι έχοντας αυτό το είδος λήψεων ως βάση. Όχι πως γενικότερα οι Sigma δεν είναι ογκώδεις και θα τον έκαναν πολύ μικρότερο αλλά οκ :P
 
Στην αστροφωτογραφια ενα από τα πιο κρίσιμα χαρακτηριστικά είναι το coma στα ανοιχτά διαφράγματα και αυτό είναι θέμα καθαρά οπτικής σχεδίασης , δεν διορθώνεται με software στη μηχανή
 
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Υπαρχει κι αλλος λογος παντως η Canon σε ολη την σειρα της φακων με μοτερ VCM που ειναι πλεον η καλη της σειρα για hybrid χρησεις προσπαθησε και ολοι οι φακοι ειναι στο ιδιο μεγεθος.

Αυτο για να προσελκυσει πελατειακο κοινο που ενδιαφερεται για αυτο το χαρακτηριστικο οπως και χρηστες που θελουν να μπορουν να χρησιμοποιουν τους φακους αυτους σε gimballs


το ποσο πυκνη αρχιτεκτονικη εχει φαινεται καθαρα εδω

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