Sunspot AR1967 (astronomy winter sky ). Photo by foleyfotos
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Sunspot AR1967

Uploaded by: foleyfotos

Thursday February 6, 2014

San Francisco, CA (Current Weather Conditions)

Caption: Near the 4:30 clockface position is AR1967, a very large sunspot that will only be visible through tomorrow. The sunspot is a reincarnation of former AR1944. This shot was taken at 560mm through a mylar solar filter. Cropped from the original frame.

Manufacturer: FUJIFILM

Model: FinePix HS30EXR

Orientation: top - left

x-Resolution: 72.00

y-Resolution: 72.00

Resolution Unit: Inch

Software: Adobe Photoshop CS3 Windows

YCbCr Positioning: co-sited

Copyright: [None] (Photographer) - (Editor)

PRINT Image Matching: 28 bytes undefined data

Compression: JPEG compression

Exposure Time: 1/150 sec.

FNumber: f/5.0

Exposure Program: Normal program

ISO Speed Ratings: 100

Exif Version: Unknown Exif Version

Components Configuration: Y Cb Cr -

Compressed Bits per Pixel: 3.20

Shutter speed: 7.21 EV (APEX: 12, 1/148 sec.)

Aperture: 4.60 EV (f/4.9)

Brightness: 6.23 EV (257.18 cd/m^2)

Exposure Bias: 0.00 EV

MaxApertureValue: 3.00 EV (f/2.8)

Metering Mode: Spot

Light Source: 0

Flash: Flash did not fire, compulsory flash mode.

Focal Length: 98.4 mm

FlashPixVersion: FlashPix Version 1.0

Color Space: sRGB

PixelXDimension: 1200

PixelYDimension: 1200

Focal Plane x-Resolution: 14405.00

Focal Plane y-Resolution: 14405.00

Focal Plane Resolution Unit: Centimeter

Sensing Method: One-chip color area sensor

File Source: DSC

Scene Type: 1

Custom Rendered: Normal process

Exposure Mode: Auto exposure

White Balance: Auto white balance

Scene Capture Type: Standard

Sharpness: Normal

Subject Distance Range: Unknown

InteroperabilityIndex: R98

InteroperabilityVersion: 0100

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Display: 50, 100, 200 Sort: Newest First - Order Posted
2. foleyfotos
1:50 AM GMT on March 10, 2014
Sorry for the delay in responding. Thank you for your comment. A solar filter is necessary to reduce the brightness of the sun so it can be photographed and, just as importantly, protect the camera's sensor from being irreparably damaged by the sun's rays. I do have a variable neutral density filter, but I have yet to try using it on its darkest setting. Thanks again.
Action: Quote | Ignore User
Member Since: July 3, 2004 Comments: 85
1. ArtInTC
2:02 PM GMT on February 07, 2014
Outstanding shot! Out of curiosity, what does that filter do?
Action: Quote | Ignore User
Member Since: March 7, 2012 Comments: 775

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