Canon MP-E65
Moderators: rjlittlefield, ChrisR, Chris S., Pau
Canon MP-E65
Hi there good people,
Does anyone know the optimum aperture for the Canon MP-E65?
Does anyone know the optimum aperture for the Canon MP-E65?
At 5x, there is a difference(apparently) between individual lenses. Mine and Rik's are sharpest at f/2.8, Charlie's (if I remember correctly) about f/4.
On APS of course, diffraction is starting to have an effect so it's probably dependent on the camera sensor.
At lower magnifications f/4 to f/8 are "fine", a little better than f/2.8, for mine.
On APS of course, diffraction is starting to have an effect so it's probably dependent on the camera sensor.
At lower magnifications f/4 to f/8 are "fine", a little better than f/2.8, for mine.
That would be about right for the higher magnifications.
I go first to Rik's "DOF Two Ways" spreadsheet from this site, and test from there.
It's Here
One thing I don't remember is the PMR of an MP E-65.
"Oversampling" doesn't have much disadvantage, and if the flash throws an erratic frame, you can leave it out with less effect!
I go first to Rik's "DOF Two Ways" spreadsheet from this site, and test from there.
It's Here
One thing I don't remember is the PMR of an MP E-65.
"Oversampling" doesn't have much disadvantage, and if the flash throws an erratic frame, you can leave it out with less effect!
Hi from a hot Cape Town -
I am wondering if I should treat myself to the MPE-65 for christmas ? I expect the SA Rand to depreciate badly in the next few weeks, perhaps never to recover, and although it is expensive in Rand terms (over R15.65 for one $), will only get worse.
I have the Canon 100mm Macro (non-l), and the Nikon 10x plan achro. I plan to try out cross polarization photography with crystals, and think that the MPE will be more user-friendly than adding extension tubes each time I want a new magnification. Also handle colour better.
Can it be used with extension tubes and the 1.4 or 2x converter ? I have the Vello macrofier that enables me to have aperture control with manual extension tubes.
I am wondering if I should treat myself to the MPE-65 for christmas ? I expect the SA Rand to depreciate badly in the next few weeks, perhaps never to recover, and although it is expensive in Rand terms (over R15.65 for one $), will only get worse.
I have the Canon 100mm Macro (non-l), and the Nikon 10x plan achro. I plan to try out cross polarization photography with crystals, and think that the MPE will be more user-friendly than adding extension tubes each time I want a new magnification. Also handle colour better.
Can it be used with extension tubes and the 1.4 or 2x converter ? I have the Vello macrofier that enables me to have aperture control with manual extension tubes.
The MPE 65 can be used with TC 1.4x for sure (have done that, to 7:1 on FF camera body), and should also work with TC 2.0x (to 10:1 on FF body). There are the usual caveats such as losing 1-2 f-stops, additional joint in set-up. You can also add additional extension rings if you really want to.
On the small pixel cameras such as the 5DsR, at >4:1 you run into diffraction limit and only get empty magnification.
On the small pixel cameras such as the 5DsR, at >4:1 you run into diffraction limit and only get empty magnification.
Pau I have the Metabones adapter so I might have a closer look at the lens after Christmas.Pau wrote:In principle it could work very well if coupled with the expensive Metabones adapter that allows to control the aperture. With a cheap contactless adapter you need to shoot all the time wide open or preset the aperture previously on a Canon EOS body (a working tric but not very practical)
Thank you.
Alan