Sony SEL90M28G Manuale utente

The camera does not focus using the auto

focus (AF) setting.

Autofocus does not focus well sometimes due to reasons such as distance from the subject and

the environment in which you are photographing.

Check the solutions as follows according to the conditions or environment.

Make sure you are not too close to the subject.

The minimum distance from the subject in which you can photograph (minimum

focusing distance) is determined by the individual lens.

Photographs will not be in focus if you attempt to shoot at less than the minimum

focusing distance. Please shoot at the focus distance or farther away from the subject.

Minimum focusing distance is noted on the front or side of the lens.

Example: For SAL1855 （DT 18-55mm F3.5-5.6 SAM), minimum focusing distance is

noted as "1.25m/0.82ft" in meters (m) and feet (ft).



Make sure the subject or environment do not inhibit focusing.

oSubjects with no contrast, such as blue sky or white walls

oSituations where multiple subjects are at different distances within the focus area

oSubjects with repeating patterns, such as building exteriors

oBright or backlit subjects

oShiny subjects, such as water surfaces, and glossy subjects

oFast moving subjects

Focus as follows for such subjects or in situations where it is difficult to focus.

7. Compose the shot with the focus locked using a subject at the same distance

(Lightly press the shutter button to keep a green frame displayed.)

8. Switch the lens or camera body to "MF" (manual focus), and adjust the focus

manually.

If photograph photographs come out with only part in focus

By narrowing down the camera aperture, you can shoot with the entire photograph in

focus with little blurring in the background or foreground.

Photograph with aperture opened (example: Aperture value of 2.8)

Photograph with aperture narrowed down (example: Aperture value of 16)

Try the following operations.

0. Turn the camera's mode dial to "A (Aperture Priority mode)".

This mode automatically sets the camera so variables other than aperture are at

optimum exposure.

1. Increase the F-value with the dial.

Increasing the aperture in dark locations reduces the amount of light received,

making it easier for camera shake to occur. In such cases, use a tripod or similar

mechanism to prevent camera shake.

If using ILCA-77M2, SLT-A77V, SLT-A99V, or DSLR-A900

If the photograph is not in focus with subjects and situations other than those noted

above, you can adjust the focusing position for each lens used.

In MENU - 3 (Setup menu) - AF Micro Adj., change to On and make fine

adjustments from amount.

The focusing position shifts behind the subject the more you set to the "+" side and in

front of the subject the more you set to the "-" side.

Set the adjustment value while taking test photographs.

Note:

oIf AF Micro Adj. is not set to On, the adjustment value cannot be registered.

oIt is recommended that you adjust in the actual environment where you will

actually be photographing.

oIf you attach a lens that has already been registered, the registered adjustment

value will be displayed.

oIf the lens has not been registered, "±0" will be displayed.

oIf "-" is displayed for the adjustment value, 30 types of lenses have already been

registered. To register a new lens, attach the lens to be deleted and set the

adjustment value to "±0", or clear the adjustment values to reset all registered

adjustment values.

oMaking AF fine adjustments with lenses of other manufacturers may affect the

adjustment values of your Sony, Minolta, and Konica Minolta lenses. Do not use

the function with lenses of other manufacturers.

oIf using lenses of the same specifications and Sony, Minolta, and Konica Minolta

lenses, AF fine adjustments cannot be set individually.

The SteadyShot indicator blinks and an

ERROR icon that looks like a hand appears.

If an error occurs with the SteadyShot feature, the SteadyShot indicator may blink and the LCD

screen or viewfinder will display the following icon:

Follow the steps below to resolve this issue.

1. Turn off the camera

2. Remove the battery.

3. Allow the camera to remain without power for 1 minute.

4. Reinsert the battery.

5. Turn on the camera.

The troubleshooting steps listed above should resolve your issue. If you have completed all of

the steps and the issue is not resolved, service may be required.

What is the difference between an A-mount

and an E-mount?

For interchangeable lens cameras produced by Sony, there are two types of mount standard: A-

mount and E-mount.

The mount is the part that joins the camera’s body and the lens. To shoot images, attach the lens

to your camera’s lens mount and let the lens and the body recognize each other.

A-mount (ILCA-xx, DSLR-Axx, SLT-Axx)

Mount standard adopted on models that have a mirror or a translucent mirror.

E-mount (ILCE-xx, NEX-xx)

Mount standard adopted on mirrorless models.

[1]Mount on an A-mount body

[2]Mount on an E-mount body

A-mount and E-mount features

A-mount cameras with Sony Translucent Mirror Technology offer the advantages of full-

time phase-detection autofocus. The short flange back distance of mirrorless E-mount

models makes it possible to design compact, high-performance bodies and lenses that

offer outstanding handling and mobility.

A-mount

[1] Lens mount [2] Flange back distance

[3] Translucent Mirror [4] Image sensor plane

E-mount

[1] Lens mount [2] Flange back distance

[3] Image sensor plane



Image sensor size

Both A and E mount cameras have full frame and APS-C sensors options. Among the

many sensor sizes in common use, full-frame is considered to be a large format while

APS-C is a medium format. Both are popular for their individual advantages.

About A-mount lenses and E-mount lenses

Sony provides A-mount lenses and E-mount lenses that meet each mount standard for

camera bodies. The name of an A-mount lens starts with “SAL” while the name of an E-

mount lens starts with “SEL.”

For lenses and accessories compatible with other brands other than Sony, refer to FAQ

Can I use lenses and accessories manufactured by companies other than Sony?

For the kind of lenses which can be used, refer to FAQ

What kinds of lenses can be used?



How to use an A-mount lens on an E-mount body

Since A-mount and E-mount have different diameters, they are not interchangeable.

However, you can use an A-mount lens on an E-mount body by using a Mount Adaptor.

NOTE: You cannot use an E-mount lens on an A-mount body.

When you use a Mount Adaptor, there may be some limitations such as unavailability of

the autofocus function or SteadyShot function.

For the differences among Mount Adaptors, refer to FAQ

What is the difference between the LA-EA1, LA-EA2, LA-EA3, and LA-EA4 lens

mount adapters?

Windows 10 information - July 28 Update

As announced by Microsoft on June 1, 2015, Windows 10 - their latest operating system - is

scheduled to launch on July 29, 2015. Please refer to Microsoft website for details.

Sony is now testing Windows 10 and will be providing compatibility information after July

2015. The release schedule will vary according to the different products.

Consumer Electronics:

Compatibility information will be posted here for your reference once our testing is

completed.

Before using your Sony product with Windows 10, it is recommended that you check for

any compatibility information available for your model.

VAIO computers:

Check here for information related to the compatibility, instructions, drivers, etc. for

models supported for Windows 10.

Please note that Sony is currently not planning on providing an upgrade procedure, nor

drivers and utilities, for older models which were released with Windows 7 or previous

versions of Windows preinstalled.

The camera does not recognize the lens and

an error message is displayed.

The camera does not recognize the lens and an error message is displayed.

This solution applies to both of the following error messages:

Check the Lens attachment.

No Lens Attached.

Follow the steps below to troubleshoot this issue. If model-specific information is required to

complete any of the steps in this solution, refer to the operating instructions supplied with the

product.

1. Make sure you are using a compatible lens.

To check the list of compatible lenses for your camera, refer to the following link:

Camera Body-Lens Compatibility Information

IMPORTANT: If attaching the camera body to an astronomical telescope or other

similar device, (depending on your camera) it will be necessary to do one of the

following:

oSet the mode dial to Manual (M).

oSet the Release w/oLens option in the camera menu to Enable.

oSet the Shutter lock option in the camera menu to Off: no lens.

NOTE: Some Lensbaby lenses may attach to the camera body. However, Lensbaby

lenses do not communicate electronically with the camera body and cannot be

recognized. Sony does not support the use of Lensbaby lenses.

2. Check if the lens is connected properly.

NOTE: If the lens is not attached properly, the connection points that enable

communication between the camera body and lens do not make contact. Do not push the

lens release button, but turn the lens clockwise and attach to the camera body until it

clicks. Below is an example of the lens release button location.

Lens release button position (NEX-7)

3. Turn off the camera.

4. Remove the lens from the body of the camera.

5. Examine the pins on the body of the camera that connect to the lens.

If there is dirt on the contacts of the body or the lens, the camera body may not recognize

the lens due to attachment failure. Wipe dirt from the contacts using a cotton swab or a

dry soft cloth (cleaning cloth, etc.), then attach the lens to the camera body.

IMPORTANT:

oWhen wiping the dirt off, be careful to keep dust or debris from getting

inside the camera body or the lens.

oTake care not to touch the lens surface.

oDo not use force but wipe lightly so as not to put pressure on the contacts of

the body.

Lens contacts

Make sure nothing is covering or obstructing the metal contacts on the lens by cleaning

the contacts.

Body contacts

oEnsure the pins are not bent.

oEnsure nothing is covering or obstructing the pins.

IMPORTANT: If the pins on the camera body are bent, then Service will be

required.

6. If there are no bent pins or other obstructions, reattach the lens to the camera body.

7. Turn on the camera.

8. If the issue is still not resolved, try connecting a different lens (if available) to determine

whether the problem is with the lens or the camera body.

9. IMPORTANT: If the issue does not happen with other lenses, then the previous lens

may require service. However, if the issue occurs with other lenses as well, then the

camera body may require Service.

NOTE: If the issue is not resolved and a lens from another manufacturer is being used,

then the lens (or lens adapter) is most likely not compatible. Functionality of third-party

lenses is not guaranteed. Even though a third-party lens may not be able to communicate

with the camera for Auto Focus (AF) and Auto Exposure (AE), pictures may still be able

to be taken by setting the camera to Manual (M), then manually setting the shutter speed,

aperture, ISO, and focus.

Renowned G Lens background bokeh

Beautiful background bokeh is synonymous with the G Lens name, and it can really make the

subject stand out. Individual calibration of each lens ensures optimum compensation for

spherical aberration, resulting in smooth rendering of edges without a trace of ugly "nisen

bokeh". A nine-blade circular aperture also contributes to great looking bokeh.

Image-wide clarity from macro to infinity

Macro lenses are often used over a wide range of focusing distances, so a floating focus

mechanism has been implemented for optimum suppression of close-focus aberration. The

floating system reduces the size of the lens while maintaining outstanding clarity throughout the

image area, from infinity to the closest focusing distance.

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