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pingflood · 11-08-2009, 02:13 PM

OK, you guys had me curious enough.. I went to our photo forum and picked and image with exif intact. In OPanda it shows "Lens focal length: 50mm" and "Focal length in 35mm film: 75mm". This was taken with a K20D. My 50D shot only has "Lens focal length: 400mm".

So it appears Pentax adds a second exif tag with the "equivalent focal length" data. I don't like these conversions since they are very misleading if people don't understand what they represent, but the "Lens focal length" field which is the real key is unaltered.

KungPOW · 11-08-2009, 03:41 PM

In photoME Canon 5D mkI photos also show an equivilent to 35mm format focal length.

like this:

200*mm*(equiv. 201*mm)

OMG! does this mean the 5D is not really full frame! Now I just don't know what to think!

------

no I am not serious...

pingflood · 11-08-2009, 04:05 PM

No sign of equivalents in PhotoME on the 50D shot either.. weird.

KungPOW, can you check this image
https://www.pentaxforums.com/forums/post-your-photos/79245-nature-sandpiper-work.html

and see what it says? Maybe your version of PhotoME does that calculation and mine doesn't...

Samsungian · 11-08-2009, 04:52 PM

I'm having second thoughts. I was certain I'd never buy another crop format dslr. Now I'm getting the concept of more megapixel benefit on a smaller 1.6x sensor. Maybe I will get a 7D when its shed some price. It would be a heck of a deal for $400-$500 less than list. Its remained instock at B&H for like 10 days now, same with 5D Mark II. Always instock thesedays.

KungPOW · 11-08-2009, 05:24 PM

Originally posted by pingflood

No sign of equivalents in PhotoME on the 50D shot either.. weird.

KungPOW, can you check this image
https://www.pentaxforums.com/forums/post-your-photos/79245-nature-sandpiper-work.html

and see what it says? Maybe your version of PhotoME does that calculation and mine doesn't...

Beautiful photo.

The EXIF focal length just says 400mm. No equivilent length given.

The data fields are also different between the two cameras. The 5D has a bunch of fields the 50D does not. The 50D might has some the 5D doesn't. I didn't look that close.

Jonson PL · 11-14-2009, 04:11 PM

Originally posted by LeDave

Very nice, The 50D really held up well against the 7D. I am really surprised by the IQ of the 5D MK 2 compared to the 7D, I didn't know full frames had so much more detail over APS-C, it's nuts.

I'll agree on this one

Originally posted by pingflood

No sign of equivalents in PhotoME on the 50D shot either.. weird.

KungPOW, can you check this image
https://www.pentaxforums.com/forums/post-your-photos/79245-nature-sandpiper-work.html

and see what it says? Maybe your version of PhotoME does that calculation and mine doesn't...

Beautiful and calming shot

11-08-2009, 04:05 PM	#33
pingflood Veteran Member Join Date: Jun 2008 Location: Borås, Sweden Photos: Gallery Posts: 3,169	No sign of equivalents in PhotoME on the 50D shot either.. weird. KungPOW, can you check this image https://www.pentaxforums.com/forums/post-your-photos/79245-nature-sandpiper-work.html and see what it says? Maybe your version of PhotoME does that calculation and mine doesn't... Last edited by pingflood; 11-08-2009 at 04:17 PM.

11-08-2009, 04:52 PM	#34
Samsungian Veteran Member Join Date: Jul 2008 Location: Colorado USA Posts: 1,337 Original Poster	I'm having second thoughts I'm having second thoughts. I was certain I'd never buy another crop format dslr. Now I'm getting the concept of more megapixel benefit on a smaller 1.6x sensor. Maybe I will get a 7D when its shed some price. It would be a heck of a deal for $400-$500 less than list. Its remained instock at B&H for like 10 days now, same with 5D Mark II. Always instock thesedays.

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11-08-2009, 02:13 PM	#31
pingflood Veteran Member Join Date: Jun 2008 Location: Borås, Sweden Photos: Gallery Posts: 3,169	OK, you guys had me curious enough.. I went to our photo forum and picked and image with exif intact. In OPanda it shows "Lens focal length: 50mm" and "Focal length in 35mm film: 75mm". This was taken with a K20D. My 50D shot only has "Lens focal length: 400mm". So it appears Pentax adds a second exif tag with the "equivalent focal length" data. I don't like these conversions since they are very misleading if people don't understand what they represent, but the "Lens focal length" field which is the real key is unaltered.

11-08-2009, 03:41 PM	#32
KungPOW Veteran Member Join Date: Nov 2007 Location: Vancouver, Canada Photos: Gallery Posts: 1,699	In photoME Canon 5D mkI photos also show an equivilent to 35mm format focal length. like this: 200mm(equiv. 201*mm) OMG! does this mean the 5D is not really full frame! Now I just don't know what to think! ------ no I am not serious...

11-08-2009, 05:24 PM	#35
KungPOW Veteran Member Join Date: Nov 2007 Location: Vancouver, Canada Photos: Gallery Posts: 1,699	Originally posted by pingflood No sign of equivalents in PhotoME on the 50D shot either.. weird. KungPOW, can you check this image https://www.pentaxforums.com/forums/post-your-photos/79245-nature-sandpiper-work.html and see what it says? Maybe your version of PhotoME does that calculation and mine doesn't... Beautiful photo. The EXIF focal length just says 400mm. No equivilent length given. The data fields are also different between the two cameras. The 5D has a bunch of fields the 50D does not. The 50D might has some the 5D doesn't. I didn't look that close.

11-14-2009, 04:11 PM	#36
Jonson PL Veteran Member Join Date: Dec 2006 Location: Copenhagen Photos: Gallery Posts: 1,842	Originally posted by LeDave Very nice, The 50D really held up well against the 7D. I am really surprised by the IQ of the 5D MK 2 compared to the 7D, I didn't know full frames had so much more detail over APS-C, it's nuts. I'll agree on this one Originally posted by pingflood No sign of equivalents in PhotoME on the 50D shot either.. weird. KungPOW, can you check this image https://www.pentaxforums.com/forums/post-your-photos/79245-nature-sandpiper-work.html and see what it says? Maybe your version of PhotoME does that calculation and mine doesn't... Beautiful and calming shot

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