Re: Pentax Lens profile for Photoshop CS6 - help wanted
Thanks Rob. This program "Hugin" (in old Nordic mythologly Hugin is one of Odins two ravens - the one for "thinking") may be usefull for other purposes as well :-) Regards Jens -- Treat others as you would like to be treated yourself. On Jan 6, 2014 01:55 "Rob Studdert" wrote: > Jens shift lens correction is problematic, it's best done dynamically > because the lens correction routines assume that the distortions are > predictable as generally the lens characteristics are based on the > effecive centre of the lens being at the centre of the frame. If a > lens is tilted or shifted this is no longer the case. Instead you can > use a program such as Hugin which allows you to set control points on > vertical or horizontal elements in the frame which can then > facilitate > remapping of the frame in order to negate distortions. > > > On 5 January 2014 22:21, Jens wrote: > > > > Hello list > > > > Doing a Photo project photographing Buildings. > > I have been using two lenses: > > SMC PENTAX SHIFT 1:3.5/28mm > > Sigma EX 10-20mm 1:4.5-5.6 DC > > > > Using Photoshop CS6 I discovered that CS6 has a lens correction > > filter, which Works brilliantly for the Sigma lens (I'm using the > > filter for the Sigma HSM version), that is included in the CS6 lens > > filter data base. > > Unfortunatlely the old shift lens is not mentioned in the filter > > list. > > > > Does anyone know if and how I may import the filter for the Pentax > > shift lens? > > > > Thanks in adcvance > > > > Regards > > Jens, > > Denmark > > > > > > > > > > > > > > -- > > PDML Pentax-Discuss Mail List > > PDML@pdml.net > > http://pdml.net/mailman/listinfo/pdml_pdml.net > > to UNSUBSCRIBE from the PDML, please visit the link directly above > > and follow the directions. > > > > -- > Rob Studdert (Digital Image Studio) > Tel: +61-418-166-870 UTC +10 Hours > Gmail, eBay, Skype, Twitter, Facebook, Picasa: distudio > > -- > PDML Pentax-Discuss Mail List > PDML@pdml.net > http://pdml.net/mailman/listinfo/pdml_pdml.net > to UNSUBSCRIBE from the PDML, please visit the link directly above and > follow the directions. -- PDML Pentax-Discuss Mail List PDML@pdml.net http://pdml.net/mailman/listinfo/pdml_pdml.net to UNSUBSCRIBE from the PDML, please visit the link directly above and follow the directions.
Re: Pentax Lens profile for Photoshop CS6 - help wanted
Jens shift lens correction is problematic, it's best done dynamically because the lens correction routines assume that the distortions are predictable as generally the lens characteristics are based on the effecive centre of the lens being at the centre of the frame. If a lens is tilted or shifted this is no longer the case. Instead you can use a program such as Hugin which allows you to set control points on vertical or horizontal elements in the frame which can then facilitate remapping of the frame in order to negate distortions. On 5 January 2014 22:21, Jens wrote: > > Hello list > > Doing a Photo project photographing Buildings. > I have been using two lenses: > SMC PENTAX SHIFT 1:3.5/28mm > Sigma EX 10-20mm 1:4.5-5.6 DC > > Using Photoshop CS6 I discovered that CS6 has a lens correction filter, which > Works brilliantly for the Sigma lens (I'm using the filter for the Sigma HSM > version), that is included in the CS6 lens filter data base. > Unfortunatlely the old shift lens is not mentioned in the filter list. > > Does anyone know if and how I may import the filter for the Pentax shift lens? > > Thanks in adcvance > > Regards > Jens, > Denmark > > > > > > > -- > PDML Pentax-Discuss Mail List > PDML@pdml.net > http://pdml.net/mailman/listinfo/pdml_pdml.net > to UNSUBSCRIBE from the PDML, please visit the link directly above and follow > the directions. -- Rob Studdert (Digital Image Studio) Tel: +61-418-166-870 UTC +10 Hours Gmail, eBay, Skype, Twitter, Facebook, Picasa: distudio -- PDML Pentax-Discuss Mail List PDML@pdml.net http://pdml.net/mailman/listinfo/pdml_pdml.net to UNSUBSCRIBE from the PDML, please visit the link directly above and follow the directions.
Re: Pentax Lens profile for Photoshop CS6 - help wanted
Hello Mark I suspect you are absolutely right about this :-) I have found that the corrections are quite small - especially in the centre part of the image, which is what one usually wants to use. I have posted some samples here: http://www.flickr.com/photos/bladt/sets/72157639440159603/ Regards Jens -- Treat others as you would like to be treated yourself. On Jan 5, 2014 16:04 "Mark Roberts" wrote: > Jens wrote: > >Using Photoshop CS6 I discovered that CS6 has a lens correction > >filter, > >which Works brilliantly for the Sigma lens (I'm using the filter for > >the > >Sigma HSM version), that is included in the CS6 lens filter data > >base. > >Unfortunatlely the old shift lens is not mentioned in the filter > >list. > > > >Does anyone know if and how I may import the filter for the Pentax > >shift lens? > > Unfortunately, though it might be possible to create a profile for > the > shift lens, I don't think it would be possible to create a profile > that *works* for the shift lens, simply due to the nature of the > beast. A profile that works with the lens centered wouldn't work with > the lens shifted by 1mm. And a profile that was optimized for the > lens > shifted by 1mm wouldn't be quite right with the lens centered or with > any other amount of shift. > > I suppose it's possible to create multiple profiles for that lens > with > various amounts of shift (and you'd want to record how much shift you > used with each shot because that information isn't in metadata), but > I'd expect it would be less work to just apply manual corrections for > each shot. > > -- > Mark Roberts - Photography & Multimedia > www.robertstech.com > > > > > > -- > PDML Pentax-Discuss Mail List > PDML@pdml.net > http://pdml.net/mailman/listinfo/pdml_pdml.net > to UNSUBSCRIBE from the PDML, please visit the link directly above and > follow the directions. -- PDML Pentax-Discuss Mail List PDML@pdml.net http://pdml.net/mailman/listinfo/pdml_pdml.net to UNSUBSCRIBE from the PDML, please visit the link directly above and follow the directions.
Re: Pentax Lens profile for Photoshop CS6 - help wanted
Jens wrote: >Using Photoshop CS6 I discovered that CS6 has a lens correction filter, >which Works brilliantly for the Sigma lens (I'm using the filter for the >Sigma HSM version), that is included in the CS6 lens filter data base. >Unfortunatlely the old shift lens is not mentioned in the filter list. > >Does anyone know if and how I may import the filter for the Pentax shift lens? Unfortunately, though it might be possible to create a profile for the shift lens, I don't think it would be possible to create a profile that *works* for the shift lens, simply due to the nature of the beast. A profile that works with the lens centered wouldn't work with the lens shifted by 1mm. And a profile that was optimized for the lens shifted by 1mm wouldn't be quite right with the lens centered or with any other amount of shift. I suppose it's possible to create multiple profiles for that lens with various amounts of shift (and you'd want to record how much shift you used with each shot because that information isn't in metadata), but I'd expect it would be less work to just apply manual corrections for each shot. -- Mark Roberts - Photography & Multimedia www.robertstech.com -- PDML Pentax-Discuss Mail List PDML@pdml.net http://pdml.net/mailman/listinfo/pdml_pdml.net to UNSUBSCRIBE from the PDML, please visit the link directly above and follow the directions.
Re: Pentax Lens profile for Photoshop CS6 - help wanted
Thans - pretty fast answer :-) -- Treat others as you would like to be treated yourself. On Jan 5, 2014 12:48 "Attila Boros" wrote: > You may have luck if someone from the community created a profile for > that lens, in that case you can use the Lens Profile Downloader. > Creating your own profile is a lot of work. > > https://blogs.adobe.com/jkost/2013/09/create-your-own-lens-profiles.ht > ml > > On Sun, Jan 5, 2014 at 1:21 PM, Jens wrote: > > > > Hello list > > > > Doing a Photo project photographing Buildings. > > I have been using two lenses: > > SMC PENTAX SHIFT 1:3.5/28mm > > Sigma EX 10-20mm 1:4.5-5.6 DC > > > > Using Photoshop CS6 I discovered that CS6 has a lens correction > > filter, which Works brilliantly for the Sigma lens (I'm using the > > filter for the Sigma HSM version), that is included in the CS6 lens > > filter data base. > > Unfortunatlely the old shift lens is not mentioned in the filter > > list. > > > > Does anyone know if and how I may import the filter for the Pentax > > shift lens? > > > > Thanks in adcvance > > > > Regards > > Jens, > > Denmark > > > > > > > > > > > > > > -- > > PDML Pentax-Discuss Mail List > > PDML@pdml.net > > http://pdml.net/mailman/listinfo/pdml_pdml.net > > to UNSUBSCRIBE from the PDML, please visit the link directly above > > and follow the directions. > > -- > PDML Pentax-Discuss Mail List > PDML@pdml.net > http://pdml.net/mailman/listinfo/pdml_pdml.net > to UNSUBSCRIBE from the PDML, please visit the link directly above and > follow the directions. -- PDML Pentax-Discuss Mail List PDML@pdml.net http://pdml.net/mailman/listinfo/pdml_pdml.net to UNSUBSCRIBE from the PDML, please visit the link directly above and follow the directions.
Pentax Lens profile for Photoshop CS6 - help wanted
Sample images are here: http://www.flickr.com/photos/bladt/11773303234/ Jens Hello list Doing a Photo project photographing Buildings. I have been using two lenses: SMC PENTAX SHIFT 1:3.5/28mm Sigma EX 10-20mm 1:4.5-5.6 DC Using Photoshop CS6 I discovered that CS6 has a lens correction filter, which Works brilliantly for the Sigma lens (I'm using the filter for the Sigma HSM version), that is included in the CS6 lens filter data base. Unfortunatlely the old shift lens is not mentioned in the filter list. Does anyone know if and how I may import the filter for the Pentax shift lens? Thanks in adcvance Regards Jens, Denmark -- PDML Pentax-Discuss Mail List PDML@pdml.net http://pdml.net/mailman/listinfo/pdml_pdml.net to UNSUBSCRIBE from the PDML, please visit the link directly above and follow the directions.
Re: Pentax Lens profile for Photoshop CS6 - help wanted
You may have luck if someone from the community created a profile for that lens, in that case you can use the Lens Profile Downloader. Creating your own profile is a lot of work. https://blogs.adobe.com/jkost/2013/09/create-your-own-lens-profiles.html On Sun, Jan 5, 2014 at 1:21 PM, Jens wrote: > > Hello list > > Doing a Photo project photographing Buildings. > I have been using two lenses: > SMC PENTAX SHIFT 1:3.5/28mm > Sigma EX 10-20mm 1:4.5-5.6 DC > > Using Photoshop CS6 I discovered that CS6 has a lens correction filter, which > Works brilliantly for the Sigma lens (I'm using the filter for the Sigma HSM > version), that is included in the CS6 lens filter data base. > Unfortunatlely the old shift lens is not mentioned in the filter list. > > Does anyone know if and how I may import the filter for the Pentax shift lens? > > Thanks in adcvance > > Regards > Jens, > Denmark > > > > > > > -- > PDML Pentax-Discuss Mail List > PDML@pdml.net > http://pdml.net/mailman/listinfo/pdml_pdml.net > to UNSUBSCRIBE from the PDML, please visit the link directly above and follow > the directions. -- PDML Pentax-Discuss Mail List PDML@pdml.net http://pdml.net/mailman/listinfo/pdml_pdml.net to UNSUBSCRIBE from the PDML, please visit the link directly above and follow the directions.
Pentax Lens profile for Photoshop CS6 - help wanted
Hello list Doing a Photo project photographing Buildings. I have been using two lenses: SMC PENTAX SHIFT 1:3.5/28mm Sigma EX 10-20mm 1:4.5-5.6 DC Using Photoshop CS6 I discovered that CS6 has a lens correction filter, which Works brilliantly for the Sigma lens (I'm using the filter for the Sigma HSM version), that is included in the CS6 lens filter data base. Unfortunatlely the old shift lens is not mentioned in the filter list. Does anyone know if and how I may import the filter for the Pentax shift lens? Thanks in adcvance Regards Jens, Denmark -- PDML Pentax-Discuss Mail List PDML@pdml.net http://pdml.net/mailman/listinfo/pdml_pdml.net to UNSUBSCRIBE from the PDML, please visit the link directly above and follow the directions.
