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  1. #1
    Join Date
    Oct 2004
    Location
    Cambridge, UK
    Posts
    52

    Moire killing on D70

    I've got a 100% crop of a problem I'm having...


    I've taken this image about 30 times now both jpeg & NEF and I'm still getting this effect, this is a mid-way case, the first was full blown case of maze moire in the tower, dropping the level of sharpening helps, here I've sharpening off. If I use RAW there's almost nothing in the trees but the tower is still just as bad. Bare in mind that I've only got a 50mm f/1.8 at the moment, how would you solve this? As I'm totally stumped.
    Here's the full exif data

    Make: NIKON CORPORATION
    Model: NIKON D70
    Orientation: Normal
    XResolution: 300.00
    YResolution: 300.00
    Resolution Unit: Inch
    Software: PictureProject Transfer 1.0.1 W
    Date Time: 2004:11:16 11:54:31
    White Point: 313/1000, 329/1000
    Primary Chromaticities: 64/100, 33/100, 21/100, 71/100, 15/100, 6/100
    YCb Cr Coefficients: 299/1000, 587/1000, 114/1000
    YCb Cr Positioning: Centered
    Exif Offset: 354
    Exposure Time: 1/500 sec
    FNumber: F9.0
    Exposure Program: Aperture priority
    Exif Version: "0221"
    Date Time Original: 2004:11:16 11:49:04
    Date Time Digitized: 2004:11:16 11:49:04
    Components Configuration: YCbCr
    Exposure Bias Value: 0 EV
    Max Aperture Value: F1.6
    Metering Mode: MultiSegment
    Light Source: Fine Weather
    Flash: Off
    Focal Length: 50.00 mm
    Maker Note: "Nikon"
    Sub Sec Time: 40
    Sub Sec Time Original: 40
    Sub Sec Time Digitized: 40
    Flash Pix Version: "0100"
    Color Space:
    Exif Image Width: 2000
    Exif Image Length: 3008
    Interoperability Offset: 976
    Interoperability Index: R03
    Interoperability Version: "0100"
    Sensing Method: OneChipColorArea
    File Source: "."
    Scene Type: "."
    CFAPattern: ""
    Custom Rendered: Normal process
    Exposure Mode: Auto Exposure
    White Balance: Manual
    Digital Zoom Ratio: 1/1
    Focal Lengthin35mm Film: 75.00 mm
    Scene Capture Type: Standard
    Gain Control: None
    Contrast: Normal
    Saturation: Normal
    Sharpness: Soft
    Subject Distance Range: Unknown
    Unknown: 22/10
    ISOSpeed: 0, 200
    Quality: "FINE "
    WhiteBalance: "SUNNY "
    ImageSharpening: "NONE "
    FocusMode: "AF-S "
    Lens information: 50.0-50.0(mm) F1.8-F1.8
    FocusArea: "...."
    Mode: 0
    NoiseReduction: "OFF "

  2. #2
    Join Date
    Jul 2004
    Location
    Atlanta, GA
    Posts
    2,345
    Do you see the moire only on your monitor? I ask as I cannot see anything on my laptop LCD. To my eye both the trees and tower appear similar in sharpness and I see none of the patterning/color shifting I have seen in other moire examples.

  3. #3
    Join Date
    Jul 2004
    Location
    Monterey Bay
    Posts
    6,029
    Quote Originally Posted by Terracotta
    I've got a 100% crop of a problem I'm having...

    I've taken this image about 30 times now both jpeg & NEF and I'm still getting this effect, this is a mid-way case, the first was full blown case of maze moire in the tower, dropping the level of sharpening helps, here I've sharpening off. If I use RAW there's almost nothing in the trees but the tower is still just as bad. Bare in mind that I've only got a 50mm f/1.8 at the moment, how would you solve this? As I'm totally stumped.
    Here's the full exif data
    This looks like chromatic aberation (purple fringing), not moire'. If you also see it on the edges of leaves on the trees then it is also CA. This is generally a lens issue, and can be helped, to some degree, by smaller aperture settings.

    If you kill the purple/violet in photoshop it should go away.

    This is one of the reasons I rarely use 100% crop when reviewing pictures. If you print this picture I doubt that you would be able to see this effect even at 13 x 19.

    I use my 50mm f1.8 frequently and have to admit I've not gone looking for problems, but pictures are clean and clear at normal viewing size. I have printed a couple (one of the desert with palms and blue sky) at 13 x 19 and they look great. If there is CA (or even minor moire') it doesn't make a difference in the print.

    Advice: Don't look at your photographic creations at 100% crop.
    D7000, D70, CP990, CP900, FE.
    50mm f/1.8, Sigma 18-125, Sigma 24-70 f/2.8, Nikon 18-105 VR, Nikon 55-200 VR, Nikon 43-86 f/3.5 AiS, Vivitar 28-90 F/2.8-3.5 Macro, Vivitar 75-205 F/3.8-4.8, SB800.
    Ha! See, I can change...


    http://d70fan.smugmug.com/

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