Tokina SZ Super Tele 500mm F8 Reflex MF Instruction Manual

Tokina SZ Super Tele 500mm F8 Reflex MF

Part Names

1. Focus ring
2. Distance scale (in feet)
3. Distance scale (in meters)
4. Macro magnification scale
5. Distance scale indicator mark
6. T-mount adapter
7. T-mount attachment thread
8. Filter attachment thread (inside of rear)

Attaching the Lens to the Camera

Align the indicator marks on the T-mount and camera, and turn the lens until you hear a click (please refer to your camera’s manual for further information on attaching and removing). Check that the lens is attached securely.

T-Mount

You must adjust the position of the T-mount to adjust the position of the lens. Remove the T-mount to attach rear filters to the lens. Use the following procedure to adjust the position of the T-mount or remove the T-mount: The shape of the T-mount varies among the different camera brands.

9-Outer screw (three locations)
10-Outer ring
11-Inner ring

Note : If the outer screws ⑨ are loosened too much, the inner ring ⑪ may come off.

If the distance scale indicator mark (⑤ in Fig. 1) doesn’t align at the top center of the lens when it is attached to the camera, make an adjustment with the following procedure:

1. Slightly loosen the outer screws ⑨ (three locations) as shown in Fig. 2.＊ Do not loosen the screws too much, because they may cause the inner ring of the T-mount (⑪ in Fig. 2) to come off.
   ＊ Use a commercially available precision screwdriver to loosen the screws.

2. Turn the lens until the distance scale indicator comes to the center top, and then securely tighten the outer screws ⑨ (three locations) as shown in Fig. 2.

Use the following procedure to remove the T-mount from the lens:

1. Take the lens off the camera first.
2. Remove the T-mount from the lens by turning the T-mount counterclockwise while holding the lens with the other hand.

Setting Up the Camera

The lens has no electrical contacts, so signals aren’t exchanged between camera and lens. Therefore, you will need to turn ‘release shutter without lens’ ON in your camera settings. For further details, please refer to your camera manual.

Lens Hood

A lens hood is designed to prevent flares and ghost images caused by strong side rays that strike the front of the lens. We recommend that you use a lens good to ensure clear photographs and to protect the lens.

How to attach the lens hood

The lens hood is a screw-type hood. To set the hood securely, screw it according to the arrows shown in the diagram. To remove the hood, turn it the opposite way.

Taking Photographs

Preventing Blurry Images

• This lens is small and light but still has a long focal length. Telephoto lenses like this product are associated with a small angles of views, and higher probabilities of blurry images due to the magnification of camera shake. It is recommended that you set your camera to high sensitivity, increase the shutter speed, and use a stable tripod or monopod. You can prevent blurry images by using a cable release or self-timer function. In this case, be sure to use a stable, sturdy tripod. If your camera has a mirror-up function, use the function to further reduce the possibility of blurring.

Photographing Conditions with a Telephoto Lens

• When a telephoto lens is used, the magnification factor increases and therefore dust, water vapor and other matter suspended in the air will affect the image quality. To capture sharp images, ideally, photographs should be taken on a fine day with minimum wind following several consecutive clear days, in a location not subject to exhaust gases, smoke from chimneys, etc. It is difficult to capture sharp images in mountains and coastal areas during the summer because the air contains a considerable amount of gas and water vapor. However, your photography can be more enjoyable if you take advantage of unfavorable conditions to create works of your own, such as capturing the sea through vibrating air or shooting the ridgelines of mountains veiled in a haze.

Adjusting the Exposure

• • This lens employs reflective optics, so the aperture is fixed. The amount of light must be adjusted by changing the shutter speed (if you are using a digital camera, you can achieve this by changing ISO sensitivity). A slower shutter speed tends to cause blurry images, so it is recommended that you set your camera to high sensitivity, and use a high-sensitivity film (ISO400 or better).
  • Auto exposure is possible on nearly any camera that offers an AE function with aperture priority (except for certain Nikon and Sony models) (program AE and shutter priority AE are not possible). Set the camera without lens to the aperture-priority AE mode, and then try taking photographs in a bright area and a dark area. If you notice that the shutter speed differs from one condition to the next, auto exposure is enabled. This lens has no electrical contacts, so signals aren’t exchanged electrically between the camera and lens. The camera’s finder display or LCD screen may not come on, but this will not affect the camera or lens function.

Adjusting the Focus

• This lens isn’t linked to the autofocus function, so the focus must be adjusted manually. To bring the subject into focus, simply turn the focus ring.
• With a telephoto lens, the depth of field (the range in which the subject can be brought into focus) becomes shallow (the focus range is small), so it’s difficult to adjust the focus. Use a stable tripod or monopod to adjust the focus carefully. Generally, a super-telephoto lens with a range of 300 mm or more will have some allowance in the position of the infinite symbol ∞. This is because the refractive index of light in air changes as the temperature in the mirror cylinder changes, and the focus position may shift slightly as a result. Be sure to adjust the focus carefully by checking the image on the finder screen, even when capturing distant objects. If you’re using a digital camera with a live view feature, you can use the zoom-in function to fine-tune the focus.

Performance Table

Filter diameter

(diameter of filter at rear of lens)

| 72 mm＊

(30.5 mm)

Maximum diameter| φ74 mm
Overall length (excluding T-mount)| 89mm
Weight (excluding T-mount)| 310 g
Lens Hood| MH-721

Troubleshooting

Attaching the lens

Condition| Cause| Remedial action
The lens can’t be attached to the camera.| ❶ The T-mount isn’t attached to the lens.

❷ The T-mount doesn’t match the mount on your camera.

| ❶ Attach the T-mount to the lens and then set the lens on the T-mount to the camera.

❷ Use an appropriate T-mount. [Refer to 3, “T-Mount.” ]

＊ Multiple types of mounts may be available depending on the camera brand. For details, contact the camera manufacturer (Four-Thirds, Micro Four-Thirds, etc.).

The mount rattles.| ❶ The outer screws (three locations) on the T-mount are loose.| ❶ Securely tighten the outer screws using a commercially available precision screwdriver. [Refer to 3, “T-Mount.” ]
The distance scale indicator mark doesn’t come to the center top.| ❶ The lens and T-mount aren’t adjusted to proper positions.| ❶ Loosen the outer screws on the T-mount and turn the lens until the distance scale indicator mark comes to the center top, and then tighten the outer screws on the T-mount. [Refer to 3, “T-Mount.” ]
Other mounts can’t be attached.| ❶ The inner ring of the T-mount remains on the lens.| ❶ The T-mount has a double-structure. Once the outer screws (three locations) on the T-mount are loosened and removed, place the outer ring on the T-mount again and tighten the outer screws on the T-mount, and then remove the T-mount from the lens. [Refer to 3, “T-Mount.” ]

Taking photographs

Condition| Cause| Remedial action
The shutter doesn’t release.| ❶ The shooting mode doesn’t support the attached lens.

❷ The camera isn’t set correctly, or the camera is set to disable the shutter release when a lens without electrical contacts is used.

❸ The camera’s focus mode is set to “AF” (auto focus). In the AF mode the camera may not be able to detect the focus position of this lens, in which case the shutter doesn’t release.

| ❶ , ❷ Set the necessary items beforehand by referring to 4, ”Setting Up the Camera”, and your camera’s manual.

❸ Set the camera’s focus mode to “MF” (manual focus).

The camera’s finder display or LCD screen doesn’t come on.| ❶ This lens has no electrical contacts, so it doesn’t send or receive electrical signals to/from the camera.| ❶ Neither the camera nor the lens function is affected.
Images become blurry.| ❶ The hand shakes when photo- graphs are taken.

❷ The distance to the subject is too close.

❸ Effects of dust and water vapor in the air.

❹ The lens is dirty.

| ❶ Firmly secure the camera when taking photographs.

＊ The use of a tripod or monopod is recommended.

❷ Increase the distance from the subject.

❸ Take photographs in a place with less airborne dust, water vapor, exhaust gases, etc.

❹ Wipe clean the lens using a soft cloth. [Refer to 6, “Taking Photographs.” ]

The camera doesn’t zoom in.| This lens is a mono-focal lens.|
Auto focus doesn’t work.| ❶ This lens is a manual focus lens.| ❶ Turn the focus ring and manually adjust the focus. [Refer to 6, “Taking Photographs.” ]
The aperture can’t be adjusted.| ❶ This lens has a fixed aperture.| ❶ Adjust the exposure by changing the shutter speed. [Refer to 6, “Taking Photographs.” ]

Other

Condition| Cause| Remedial action
I want to use my lens with a camera of a different type of mount (a camera from a different manufacturer).| ❶ You can attach various T-mounts sold separately.| ❶ Check your camera for the type of mount, and consult the dealer/retail shop where you purchased your lens.
I want to attach a filter.| ❶ [Refer to 1, “Name of Each Part.” ] A filter can be attached to the filter attachment thread ⑧ as shown in the Fig. 1.| ❶ When attaching a filter in front of the lens, first confirm that the filter won’t touch the center of the front surface of the lens.
What appears to be a black cap at the center of the object lens (lens on the subject side) doesn’t come off.| ❶ This is the part of the lens structure that is used to reflect images.| ❶ Do not remove the black object. It’s okay to take a photograph as is.
Photographs are all white or all black.| ❶ The exposure is significantly off.| ❶ On cameras with aperture priority mode, this problem can be compen- sated to some extent by correcting the exposure. On models that only have the “M (manual)” mode, the lens is linked neither to the AE function nor to the exposure meter in the camera.

When using such a camera, refer to the instruction manual for informa- tion on the appropriate shutter speed.

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