Support #1343

Irix 15mm f/2.4 on Nikon

Added by Ben Perston 9 months ago. Updated 9 months ago.

Status:ClosedStart date:13 Apr 2018
Priority:NormalDue date:
Assignee:Robin Mills% Done:

100%

Category:makernoteEstimated time:1.00 hour
Target version:0.27

Description

Hi there,

It looks like this lens is not in your database yet.

A sensible name would be "Irix 15mm f/2.4" Manufacturer's website: http://en.irixlens.com/15mm

This lens comes in two versions that apparently differ only in the casing. I don't know whether they have different IDs. Mine is the "Firefly" version, the other is "Blackstone".

eviv2 output is as follows (also, low resolution sample image attached):

exiv2 -pt DSC_3811.NEF | grep -ai lens
Exif.Nikon3.LensType Byte 1 G
Exif.Nikon3.Lens Rational 4 15mm F2.4
Exif.Nikon3.LensFStops Undefined 4 6.5
Exif.NikonLd3.LensIDNumber Byte 1 191
Exif.NikonLd3.LensFStops Byte 1 F6.5

Best regards,
Ben

DSC_3820.JPG (221 KB) Ben Perston, 13 Apr 2018 22:07

History

#1 Updated by Robin Mills 9 months ago

Ben

It's possible to add lens recognition to the file ~/.exiv2 http://dev.exiv2.org/boards/3/topics/3017

539 rmills@rmillsmbp:~/temp $ exiv2 -pv --grep lens/i DSC_3820.JPG 
0x0083 Nikon3       LensType                    Byte        1  4
0x0084 Nikon3       Lens                        Rational    4  150/10 150/10 24/10 24/10
0x008b Nikon3       LensFStops                  Undefined   4  78 1 12 0
0x000c NikonLd3     LensIDNumber                Byte        1  191
0x000d NikonLd3     LensFStops                  Byte        1  78
540 rmills@rmillsmbp:~/temp $ cat ~/.exiv2 
[nikon]
191=Ben's lens
541 rmills@rmillsmbp:~/temp $ exiv2 -pa --grep lens/i DSC_3820.JPG 
Exif.Nikon3.LensType                         Byte        1  G 
Exif.Nikon3.Lens                             Rational    4  15mm F2.4
Exif.Nikon3.LensFStops                       Undefined   4  6.5
Exif.NikonLd3.LensIDNumber                   Byte        1  Ben's lens
Exif.NikonLd3.LensFStops                     Byte        1  F6.5
542 rmills@rmillsmbp:~/temp $ 

#2 Updated by Ben Perston 9 months ago

Ah, excellent, thank you for the quick reply. Updated to 0.26 and working fine now.

Ben

#3 Updated by Robin Mills 9 months ago

  • Category set to makernote
  • Status changed from New to Closed
  • Assignee set to Robin Mills
  • Target version set to 0.27
  • % Done changed from 0 to 100
  • Estimated time set to 1.00

Ah, thanks for the feedback. I have similar enquiries about once a week about lens recognition. It's very rare that anybody bothers to reply. Thank you very much. I'm very pleased to hear back from you.

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