| Joined: | Thu Apr 19th, 2012 |
| Location: | United Kingdom |
| Posts: | 4424 |
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Good after morning!:hi:
When i get tired of reading intelligent humor like mark twain, i go to the forums,on whatever, (this one not included in that list) as you know i have been looking for a macro lens. please know that although i have been a photographer for many years and a pro for some. i am not so much into the technologies involved, i am more of a try it i might like it kind.
any way i think i had a brain f--- , in the discription of the tamron 60 mm 2.0 macro
it states that it is a dx lens, then goes on to say it has a 1.5 aspect ratio or is the same as a 93mm fx lens what did i mis Tamron states it this way in their propaganda. wow this is taking a long time to write i have to look up the spelling of all these .50 cent words before i type them because i ran out of white out.
i assumed that a dx lens marked 60mm was indeed a 60mm when used on a dx body. and a fx lens used on a dx body had a 1.5 effective increase in focal length
this all sounded very clear when it woke me in the middle of the night now of course it sounds rather duh!!!!
oh well it will probably all come out in the wash,
be well shoot,enjoy,repeat :thumbsup:
Ed
Nothing is really clear since the Great Yellow Father (King Kodak) passed away!!
for your enjoyment if i made you smile it was worth it LOLhave a great day an thank you for all your comments an advice i think at this point i will go with the 60mm tamron as i cant find a new nikon 60 for a reasonable price than again i am putting off ordering till monday and things could change by then i have given up procrastinating because its such a bother
Ed
I am also mystified by that assertion. But then I do get things muxed ip these days.
As I understand it, the Tamron 60mm has been specifically designed for the smaller sensor bodies...that's DX in Nikon parlance. This means to me, it's been corrected to give the correct field of view for a 60mm lens with that smaller sensor.
It also means that it can't sensibly be used on an FX larger sensor body.
So I just don't understand their assertion a 1.5x conversion takes place.
If you use a Nikon60mm lens (which hasn't been corrected for smaller sensors) it WILL give you a 1.5x magnified 90mm on a DX body...but still work as 60mm on an FX body.
All DX lenses give you the specified focal length.
But maybe I am getting confused and need a holiday.
Last edited on Fri May 4th, 2012 13:10 by Eric
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Eric