Best portrait lens
Posted 19/01/2010 - 14:02
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Don't worry Gary, there is so much math and acronyms behind photograph, I don't know where to search it sometimes
The matter about PPI here on the forum had my head spinning last time
The matter about PPI here on the forum had my head spinning last time
Stefan
K10D, K5
DA* 16-50, DA* 50-135, D-FA 100 Macro, DA 40 Ltd, DA 18-55
AF-540FGZ
K10D, K5
DA* 16-50, DA* 50-135, D-FA 100 Macro, DA 40 Ltd, DA 18-55
AF-540FGZ
Posted 27/01/2010 - 00:26
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I use the following lenses for portrait work...
smc Pentax A 50mm f/1.7
smc Pentax F 70-210mm f/4-5.6 ED
smc Pentax FA 77mm f/1.8 Limited
I choose which one to use depending on light conditions, effects (as far as noise, bokeh, etc., is concerned) that I want to present in the final image...so forth and so on.
A piece of advice, one thing I have learned in my small travel is that with patience, practice and time...you can get great shots with most lenses...of course you have to compensate for weaknesses and cater to "ego" of the lens in question
Just do what comes naturally...for instance, I bought my smc Pentac FA 77mm f/1.8 Limited lens because I read at Pentax's site that the lens was made specifically for portraits...I saved my money and paid $599 plus "everything else" for it. That was less than 2 years ago...today I would have to spend up to $1000 dollars to replace it. Go figure.
But keep in mind, this lens is world class...by all manufacturers accounts...you get what you pay for but ya only gotta do it once...unless you are prone to accidents Take care and I wish you the best in 2010.
Chr1st0ph3r
www.flickr.com/photos/chr1st0ph3r/
smc Pentax A 50mm f/1.7
smc Pentax F 70-210mm f/4-5.6 ED
smc Pentax FA 77mm f/1.8 Limited
I choose which one to use depending on light conditions, effects (as far as noise, bokeh, etc., is concerned) that I want to present in the final image...so forth and so on.
A piece of advice, one thing I have learned in my small travel is that with patience, practice and time...you can get great shots with most lenses...of course you have to compensate for weaknesses and cater to "ego" of the lens in question
Just do what comes naturally...for instance, I bought my smc Pentac FA 77mm f/1.8 Limited lens because I read at Pentax's site that the lens was made specifically for portraits...I saved my money and paid $599 plus "everything else" for it. That was less than 2 years ago...today I would have to spend up to $1000 dollars to replace it. Go figure.
But keep in mind, this lens is world class...by all manufacturers accounts...you get what you pay for but ya only gotta do it once...unless you are prone to accidents Take care and I wish you the best in 2010.
Chr1st0ph3r
www.flickr.com/photos/chr1st0ph3r/
Posted 27/01/2010 - 07:34
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Thanks Christopher....I know, I would love to be able to spend $1000 (or the equivalent in £'s....) on a lens and one day, I will. But right now, budget is everything, which is annoying to be honest, so will jhave to make do with what I have. But I will take what you have said in and keep it as you have similar lenses to me(other than the 77mm) and it will all go in the knowledge bank! Thanks for your reply!
John
John
My Flickr page. Please feel free to view https://www.flickr.com/photos/23025412@N00
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6416 posts
17 years
[quote:3496ace15f="K10D"]The 50 mm only has the field of view of a lens 1.5 times longer focal length. However, the cropped sensor sees no more magnification with a 50mm lens tahn a FF sensor.
Regards
If you want you can have the same field of view with a 50mm lens on an APS-C sensor compared to an MF.
FOV increase with distance so that's why you can have the same FOV.
Am I correct or do I mess it up now?
FOV doesn't change with distance. The angle is constant. Opposite distance "width" increases with distance.
AOV (angle of view) has a fixed angle and is fixed per lens relative to the sensor size, look up a lens specification, it says AOV.
And yes FOV change with distance since it's in the formula:
f is the film distance (focal length can be used most of the times)
d is the object distance
o is the object dimension
i is the image dimension[/quote]I stand corrected Stefan, I should have typed AOV, hence I typed "width" (FOV) increases with distance.
Regards