Date: Fri, 24 Aug 2012 22:54:10 +0200 From: Bernt Hansson <bah@bananmonarki.se> To: freebsd@dreamchaser.org Cc: Polytropon <freebsd@edvax.de>, FreeBSD Mailing List <freebsd-questions@freebsd.org> Subject: Re: EXIF inspector Message-ID: <5037E9F2.1040005@bananmonarki.se> In-Reply-To: <50379A6B.7070206@dreamchaser.org> References: <5035C6E8.3050108@dreamchaser.org> <20120823163839.e2cf7432.freebsd@edvax.de> <503664E3.8060808@dreamchaser.org> <50375FE5.7000809@bananmonarki.se> <50379A6B.7070206@dreamchaser.org>
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2012-08-24 17:14, Gary Aitken skrev: > On 08/24/12 05:05, Bernt Hansson wrote: >> 2012-08-23 19:14, Gary Aitken skrev: >> >>> On 08/23/12 08:38, Polytropon wrote: >>>> On Thu, 23 Aug 2012 00:00:08 -0600, Gary Aitken wrote: >>>>> For the photo folks -- >>>>> >>>>> What do you use for inspecting EXIF data? >>>>> I've tried >>>>> exif >>>>> exiftags >>>>> exifprobe >>>>> and none of them show the full compliment of tags present on my oly pen-ep3. >>>>> In particular, they omit most of the vendor specific stuff, >>>>> and they seem to display different parts of things, but not everything. > ... >>> bah -- >>> exif doesn't report all the tags >> >> Try exif -l filename and it will show you all exif fields and the fields that's in the picture. >> >> From man exif >> >> -l, --list-tags >> List all known EXIF tags and IFDs. A JPEG image must be pro- >> vided, and those tags which appear in the file are shown with an >> asterisk in the corresponding position in the list. > > exif appears to list only "known" exif tags, and seems to omit vendor specific > information. Much of the important information about an image is stored in the > vendor specific tags. exif -'|' filename show the camera vendors stuff kw# exif -'|' IMG_0657.JPG MakerNote contains 109 values: Macro Mode |Normal Self-timer |Off Quality |Fine Flash Mode |Off Drive Mode |Single Unknown Tag |0x0000 Focus Mode |Single Unknown Tag |0xffff Record Mode |JPEG Image Size |Large Easy Shooting Mode |Full auto Digital Zoom |None Contrast |Normal Saturation |Normal Sharpness |Normal ISO |Auto Metering Mode |Evaluative Focus Range |Auto AF Point |0x4006 Exposure Mode |Easy shooting Unknown Tag |0x7fff Lens Type |0xffff Long Focal Length of|60000 Short Focal Length o|5000 Focal Units per mm |1000 Maximal Aperture |3.40 Minimal Aperture |8.00 Flash Activity |0xffff Flash Details | Unknown Tag |0x0000 Unknown Tag |0x0000 Focus Mode |Continuous AE Setting |Normal AE Image Stabilization |On Display Aperture |3.40 Zoom Source Width |4000 Zoom Target Width |4000 Unknown Tag |0x0000 Unknown Tag |0x0000 Photo Effect |0xffff Manual Flash Output |Off Color Tone |0x7fff Unknown Tag |0x7fff Unknown Tag |0x0000 Unknown Tag |0x0000 Unknown Tag |0xffff Unknown Tag |0x0078 Focal Type |Zoom Focal Length |5000 Focal Plane X Size |6.35 mm Focal Plane Y Size |4.75 mm Unknown Tag | Auto ISO |4.000 Shot ISO |100 Measured EV |2.38 EV Target Aperture |3.40 Target Exposure Time|1/25 Exposure Compensatio|0.00 EV White Balance |Auto Slow Shutter |Off Sequence Number |0 Unknown Tag |0x0000 Unknown Tag |0x0000 Unknown Tag |0x0000 Flash Guide Number |0.00 AF Point |0x0000 Flash Exposure Compe|0.00 EV AE Bracketing |Off AE Bracket Value |0.00 EV Unknown Tag |0x0001 Focus Distance Upper|61 mm Focus Distance Lower|0 mm FNumber |3.47 Exposure Time |1/27 Unknown Tag |0x0000 Bulb Duration |0x0000 Unknown Tag |0x0008 Camera Type |Compact Auto Rotate |None ND Filter |Off Self-timer |Off Unknown Tag |0x0000 Unknown Tag |0x0000 Unknown Tag |0x0000 Manual Flash Output |Off Image Type |IMG:PowerShot SX130 IS JPEG Firmware Version |Firmware Version 1.01 Image Number |121-0657 Owner Name | Unknown Tag | Unknown Tag | Unknown Tag | Unknown Tag | Unknown Tag | Unknown Tag | Unknown Tag | Unknown Tag | Unknown Tag | Unknown Tag | Unknown Tag | Unknown Tag | Unknown Tag | Unknown Tag | Unknown Tag | Unknown Tag | Unknown Tag | Unknown Tag | Unknown Tag | Unknown Tag | > In the case of my oly pen-ep3, exif -l lists 143 known exif tags, > of which only 49 are used by my camera. However, exiv2 shows over > 300 pieces of relevant information which actually appear, and well over 100 > I can identify as relevant to the particular image (the others may or may not > be relevant, I just can't interpret them; some are unlabelled). > >
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