Samyang 8mm f/3.5 UMC CS II objektiv ribje oko za Canon Uporabniški priročnik

1. Uvod

The Samyang 8mm f/3.5 Aspherical IF MC Fisheye lens is an ultra-wide angle lens designed for cameras with APS-C or smaller sensors. Its optical construction features 10 elements in 7 groups, including an aspherical hybrid lens. The lens incorporates a multilayer anti-reflection coating (UMC) to enhance optical performance, minimize flare, and reduce ghosting. The aperture consists of six diaphragm blades and can be set to f/22 for extensive depth-of-field. A built-in lens hood helps prevent unwanted light. This lens provides a 180-degree diagonal field of view, offering unique photographic perspectives.

Slika 1.1: Spredaj view of the Samyang 8mm f/3.5 UMC CS II Fisheye Lens with its integrated lens hood.

2. Vsebina paketa

Prosimo, preverite, ali so v paketu vašega izdelka vključeni vsi spodaj navedeni elementi:

• 1x Samyang 8mm f/3.5 UMC CS II Fisheye Lens (for Canon EF-S mount)
• 1x Front Lens Cap
• 1x Rear Lens Cap
• 1x Lens Pouch

Image 2.1: Illustration of the items included in the lens package, showing the lens, front and rear caps, and a lens pouch.

3. Ključne značilnosti

• Ultra Wide-Angle Fisheye: 8mm focal length with an exaggerated perspective for dramatic photographic effects.
• Broad Field-of-View: Offers an ultra-wide 180° diagonal field-of-view, optimized for APS-C size image sensors.
• Napredna optična zasnova: Constructed with hybrid aspherical lenses to deliver sharp, well-defined images.
• UMC Coating: Features a multi-layer anti-reflection ultra multi-coating (UMC) to effectively minimize lens flare and ghosting.
• Close-Up Capability: Minimum focusing distance of 0.3 meters (12 inches) for enhanced close-up photography.

4. Aplikacije

The Samyang 8mm f/3.5 UMC CS II Fisheye Lens is particularly well-suited for capturing unique perspectives in various photographic genres due to its ultra-wide field of view and distinct fisheye effect. It excels in situations where a broad, immersive view je zaželen.

• Arhitektura: Capture entire buildings or interior spaces with dramatic distortion.
• Artistic Photography: Create surreal and imaginative images with exaggerated perspectives.
• Narava: Encompass vast landscapes, forests, or celestial scenes.
• Potovanje: Document travel experiences with a wide, encompassing view of locations.
• Pokrajina: Ideal for expansive landscape shots, adding a creative twist.

Slika 4.1: Primeramples of photographic applications for the Samyang 8mm Fisheye Lens, including architecture, nature, and travel scenes.

5. Nastavitev in namestitev

5.1 Pritrditev objektiva

1. Prepričajte se, da je vaša kamera izklopljena.
2. Remove the rear lens cap from the Samyang 8mm lens and the body cap from your camera.
3. Align the red index mark on the lens barrel with the corresponding red index mark on your camera's lens mount.
4. Vstavite objektiv v nosilec kamere in ga zavrtite v smeri urinega kazalca, dokler se ne zaskoči. Objektiva ne vstavljajte na silo.

5.2 Odstranitev objektiva

1. Prepričajte se, da je vaša kamera izklopljena.
2. Medtem ko držite pritisnjen gumb za sprostitev objektiva na ohišju fotoaparata, zavrtite objektiv v nasprotni smeri urinega kazalca, dokler se ne ustavi.
3. Previdno odstranite objektiv z nosilca fotoaparata.
4. Zadnji pokrovček objektiva namestite na objektiv, pokrovček ohišja pa na fotoaparat, da ju zaščitite pred prahom in poškodbami.

Slika 5.1: Zadaj view of the Samyang 8mm lens, showing the Canon EF-S mount interface.

6. Upravljanje objektiva

6.1 Ročno ostrenje

This is a manual focus lens. To achieve sharp images, rotate the focus ring on the lens barrel until your subject appears clear in the viewfinder or on the camera's LCD screen. For fisheye lenses, a common technique is to set the focus to a specific distance (e.g., 1 meter or 3 feet) and rely on the extensive depth of field to keep most of the scene in focus, especially at smaller apertures.

6.2 Nadzor zaslonke

The lens features an aperture ring on the barrel. To control the aperture directly from your camera body (if supported), set the lens's aperture ring to its smallest aperture value (f/22). This allows the camera to electronically control the aperture setting. If your camera does not support electronic aperture control with this lens, you will need to adjust the aperture manually using the ring on the lens.

6.3 Nastavitve osvetlitve

Since this is a manual lens, you may need to set your camera to Manual (M) or Aperture Priority (Av/A) mode. In Manual mode, you control both aperture (via the lens ring or camera, as described above) and shutter speed. In Aperture Priority mode, you set the aperture, and the camera automatically selects the appropriate shutter speed.

7. Vzdrževanje in nega

7.1 Čiščenje leče

• Za odstranitev prahu s površine leče uporabite mehko krpo, ki ne pušča vlaken, ali krtačko za leče.
• Za madeže ali prstne odtise nanesite majhno količino čistilne raztopine za leče na čisto krpo iz mikrovlaken in nežno obrišite lečo s krožnimi gibi od sredine navzven.
• Never use abrasive materials or harsh chemicals on the lens elements.

7.2 Shranjevanje

• Ko objektiva ne uporabljate, vedno namestite sprednji in zadnji pokrovček objektiva.
• Lečo shranjujte na hladnem in suhem mestu, stran od neposredne sončne svetlobe in ekstremnih temperatur.
• Če shranjujete dlje časa, razmislite o uporabi razvlaževalnika, da preprečite rast plesni.

8. Odpravljanje težav

8.1 Images are blurry or out of focus

• Ročno ostrenje: Ensure you are manually focusing correctly. Rotate the focus ring until your subject is sharp.
• Nastavitve kamere: Verify your camera is set to a manual focus mode.
• Globinska ostrina: At wider apertures (smaller f-numbers), the depth of field is shallower, requiring more precise focus. Try stopping down the aperture (larger f-number) to increase the depth of field.

8.2 Cannot control aperture from camera

• Aperture Ring Setting: For electronic aperture control via the camera, ensure the lens's aperture ring is set to its smallest aperture (f/22).
• Način kamere: Ensure your camera is in an appropriate mode (e.g., Aperture Priority or Manual) that allows aperture control.

8.3 Dark or underexposed images

• Nastavitve osvetlitve: As this is a manual lens, the camera may not automatically set the correct exposure. Adjust your camera's ISO, shutter speed, or aperture to achieve proper exposure.
• Način merjenja: Experiment with different metering modes on your camera.

9. Tehnične specifikacije

Image 9.1: Technical specifications and dimensions of the Samyang 8mm f/3.5 UMC CS II Fisheye Lens.

10. Camera Compatibility

This lens is designed for Canon EF-S mount cameras with APS-C sensors. Compatible models include, but are not limited to:

• Canon EOS 850D
• Canon EOS 90D
• Canon EOS 250D
• Canon EOS 2000D
• Canon EOS 4000D
• Canon EOS 200D
• Canon EOS 77D
• Canon EOS 800D
• Canon EOS 1300D
• Canon EOS 80D
• Canon EOS 750D/EOS 760D

Image 10.1: Visual representation of compatible Canon EF-S mount cameras for the Samyang 8mm Fisheye Lens.

11. Garancija in podpora

For information regarding warranty coverage, technical support, or service, please refer to the official Samyang website or contact your local authorized Samyang dealer. Keep your purchase receipt as proof of purchase for warranty claims.