Pentax 75 shift for 645d

jonny1986 · 06-20-2013, 06:23 AM

I'd like to buy it for my 645d. 20 mm of shift are a lot of movement, but the focal is still very long. used with 645d it will be a 73 mm, am i wrong?, with 20 mm shoft either way what kind of field of view should i obtain? i will buy this lens only for pano and maybe tabletop, but no tilt, how will it perform? i could make a three row pano shifting vertically and horizontally the lens?

klaus123 · 06-22-2013, 08:56 AM

I think this would virtually exceed yous sensor size by 20mm in either direction (33x44 -> 73x84mm) with 6 shots and app. 100-120mbyte after stitching them together - but would you realy need that quality (What for?)... and it is still not a ultra wide pano.

Ryan Tischer · 06-22-2013, 10:43 AM

Originally posted by klaus123

but would you realy need that quality (What for?)...

For large prints one can almost never have too many megapixels!

klaus123 · 06-22-2013, 11:58 PM

Originally posted by klaus123

I think this would virtually exceed yous sensor size by 20mm in either direction (33x44 -> 73x84mm) with 6 shots and app. 100-120mbyte after stitching them together - but would you realy need that quality (What for?)... and it is still not a ultra wide pano.

Sorry - I have to correct myself

... You can shift the lens in ONE direction by 20mm and tthan rotate it in certain steps. Taht means that you can extend either 40mm in one of the orientations (44x73 or 33x84) or by rotating it to 45°-positions you will win ~14mm in each corner (72x65) - but by takeing 4 shots ein either corner instead of a 3-Row-Pano.

May be this is what you are really looking for - but it is not a 645d to start with:
http://www.ephotozine.com/article/fotodiox-rhinocam-affordable-medium-format-camera-back-21515

Last edited by klaus123; 06-23-2013 at 01:28 AM. Reason: Sony thing added

gkb · 12-01-2013, 08:35 AM

is anybody using the pentax 67 75mm shift on a 645D and can tell me about the quality compared to the excellent Pentax 645 FA 75mm? I do not want to stitch with this lens, but want to work with the perspectiv control to photograph art work mainly.

06-20-2013, 06:23 AM	#1
jonny1986 Inactive Account Join Date: Dec 2007 Location: italy Posts: 411	Pentax 75 shift for 645d I'd like to buy it for my 645d. 20 mm of shift are a lot of movement, but the focal is still very long. used with 645d it will be a 73 mm, am i wrong?, with 20 mm shoft either way what kind of field of view should i obtain? i will buy this lens only for pano and maybe tabletop, but no tilt, how will it perform? i could make a three row pano shifting vertically and horizontally the lens?

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06-22-2013, 08:56 AM	#2
klaus123 Senior Member Join Date: Apr 2011 Location: Germany Posts: 238	I think this would virtually exceed yous sensor size by 20mm in either direction (33x44 -> 73x84mm) with 6 shots and app. 100-120mbyte after stitching them together - but would you realy need that quality (What for?)... and it is still not a ultra wide pano.

06-22-2013, 10:43 AM	#3
Ryan Tischer Veteran Member Join Date: Feb 2012 Location: Duluth, Minnesota Photos: Albums Posts: 458	Originally posted by klaus123 but would you realy need that quality (What for?)... For large prints one can almost never have too many megapixels!

06-22-2013, 11:58 PM	#4
klaus123 Senior Member Join Date: Apr 2011 Location: Germany Posts: 238	Originally posted by klaus123 I think this would virtually exceed yous sensor size by 20mm in either direction (33x44 -> 73x84mm) with 6 shots and app. 100-120mbyte after stitching them together - but would you realy need that quality (What for?)... and it is still not a ultra wide pano. Sorry - I have to correct myself ... You can shift the lens in ONE direction by 20mm and tthan rotate it in certain steps. Taht means that you can extend either 40mm in one of the orientations (44x73 or 33x84) or by rotating it to 45°-positions you will win ~14mm in each corner (72x65) - but by takeing 4 shots ein either corner instead of a 3-Row-Pano. May be this is what you are really looking for - but it is not a 645d to start with: http://www.ephotozine.com/article/fotodiox-rhinocam-affordable-medium-format-camera-back-21515 Last edited by klaus123; 06-23-2013 at 01:28 AM. Reason: Sony thing added

12-01-2013, 08:35 AM	#5
gkb New Member Join Date: May 2011 Posts: 17	is anybody using the pentax 67 75mm shift on a 645D and can tell me about the quality compared to the excellent Pentax 645 FA 75mm? I do not want to stitch with this lens, but want to work with the perspectiv control to photograph art work mainly.