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#1
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Extension Tubes or Macro Lens?
What's the advantage of a macro lens over a normal lens plus extension
tubes? |
#2
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Extension Tubes or Macro Lens?
Edward Holt wrote:
What's the advantage of a macro lens over a normal lens plus extension tubes? You can't focus to infinity with an extension tube so a macro is handy in the field. Macro lenses have flat field for technical work. Macros are optimized for closeup with regards to all the inherent compromises in lens design like abberations & such (complex stuff g). |
#3
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Extension Tubes or Macro Lens?
"Edward Holt" wrote:
What's the advantage of a macro lens over a normal lens plus extension tubes? In general, the optics of a macro lens is optimised for close-op work. The optics of a normal lens are optimised at infinity. Having said that, it is possible to get good results with some normal lenses used with extension tubes. It depends on the lens. |
#4
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Extension Tubes or Macro Lens?
Paul Furman wrote
Edward Holt wrote: What's the advantage of a macro lens over a normal lens plus extension tubes? You can't focus to infinity with an extension tube so a macro is handy in the field. Macro lenses have flat field for technical work. Macros are optimized for closeup with regards to all the inherent compromises in lens design like abberations & such (complex stuff g). IMX the major practical downside to tubes vis-a-vis a macro lens was having to change tubes in the field to cover the same magnification range as a macro lens. It's quite possible to get more than adequate results using tubes with a good lens. -- Hil |
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