Mitutoyo 7,5x MPlanApo

[christophepelle]

Bonjour,
dans la série des MPlanApo de Mitutoyo le 7,5x est bien plus cher que le 5x ou le 10x (presque le double).
Ce modèle semble au dessus des autres, est ce que cette différence vaut la peine de le choisir pour notre utilisation ? Sur quoi se fait la différence ?
Je me demande si ça vaut la peine de revendre mon 10x pour investir dans ce 7,5x ?
merci de vos retours, et si vous aviez des images pour illustrer ce serait top, car il est difficile d'en trouver

[Chris S.]

(per Google translation): Hello,

in Mitutoyo's MPlanApo series the 7.5x is much more expensive than the 5x or 10x (almost double).
This model looks better than the others, is this difference worth choosing for our use? What is the difference?

I wonder if it's worth reselling my 10x to invest in this 7.5x?

thank you for your feedback, and if you had pictures to illustrate it would be great, because it is difficult to find any.

Christophe,

I have the Mitutoyo 2x, 5x, 7.5x, 10x, 20x, 50x, and 100x. I've also tested multiple specimens of each of these lenses for other forum members, so I know their characteristics reasonably well. The 7.5x objectives have in every case been very, very good--seemingly, a bit better than a lens should be that is halfway between 5x and 10x. My sense is that since Mitutoyo doesn't make as many of these, the 7.5x objectives are likely assembled by one of the company's best assemblers, and that this person gives them extra care. (All such lenses are assembled by hand, and there is considerable judgement, testing, and swapping parts in and out until the both the builder and Mitutoyo standards are satisfied.) I think this, along with presumably lower sales volume, likely accounts for the higher cost of this objective.

If you can afford to purchase a 7.5x Mitutoyo, and often enough photograph subjects in a size range to suit it, I recommend buying it. This said, I would not recommend selling your 10x to get the 7.5x, unless your subjects often fit a 7.5x very well, and if you have little to no use for your 10x. For many of us, it's essential to have a 5x, 10x, and 20x, with 7.5x being optional. Good as the 7.5x is, I would not give up the usefulness of a 5x or 10x for it, in my work. (Though if Mitutoyo were to start making a 15x, I'd probably buy it--it's nice to have these in-between magnifications.

Sorry, I don't have images made with that lens that I can share. Most of what I shoot is under NDA agreements.

Chris S.

[christophepelle]

Merci pour ce retour Chris,
J'utilise le 10x le plus souvent avec une Raynox DCR-250, soit un rapport de 7x environ.
Et est ce qu'on observe les mêmes effets de diffusion de lumière sur les sujets compliqués (avec des poils clairs par exemple) avec le 7,5x qu'avec le 10x, ou bien cest mieux géré ?

[Adalbert]

Hello,
If money is no object and you want the best,
then take a look at Mitutoyo's 5x and 10x HR objectives.
See page 19: https://www.mitutoyo.co.jp/eng/support/ ... E14020.pdf
Best,
ADi

[christophepelle]

Hello,
If money is no object and you want the best,
then take a look at Mitutoyo's 5x and 10x HR objectives.
See page 19: https://www.mitutoyo.co.jp/eng/support/ ... E14020.pdf
Best,
ADi

Ce n'est même pas le prix de ma voiture

[RobertOToole]

FYI,

In 2018 I tested the Mitutoyo 5x and 7,5x M Plan APO test, both at 5x, comparing wafer test images against a few other lenses.

https://www.closeuphotography.com/5x-lens-test

Also in 2018, I tested the Mitutoyo 10x M Plan APO against 3 other lenses.


https://www.closeuphotography.com/mitut ... m-plan-apo (also from 2018).

Best,

Robert

[RobertOToole]

Hello,
If money is no object and you want the best,
then take a look at Mitutoyo's 5x and 10x HR objectives.
See page 19: https://www.mitutoyo.co.jp/eng/support/ ... E14020.pdf
Best,
ADi

If money is no object why settle for Mitutoyo?

Don't forget about the Mag.x LD-Plan Apo 8x/0.32 objective lens.

From my site: "This lens has a numerical aperture or NA of 0.32. The nominal aperture is f/1.4 and the effective aperture is f/12.5 at 8x. For comparison the Mitutoyo M Plan 7.5x 0.21 has a the nominal aperture is f/2.1 and an effective aperture of f/17.86 at 7.5x."

(the one downside other than price is the system is designed for a 250mm TL)

More info:

https://www.closeuphotography.com/qiopt ... -objective

[christophepelle]

FYI,

In 2018 I tested the Mitutoyo 5x and 7,5x M Plan APO test, both at 5x, comparing wafer test images against a few other lenses.

https://www.closeuphotography.com/5x-lens-test

5x.jpg



Also in 2018, I tested the Mitutoyo 10x M Plan APO against 3 other lenses.


https://www.closeuphotography.com/mitut ... m-plan-apo (also from 2018).


10x.jpg

Best,

Robert

Merci Robert,
Je connais votre site que je visite régulièrement.
Je n'avais pas vu ce test, mais vous n'avez pas réalisé de comparatif direct entre le Mitu 5x et le 7,5x ?
Cdt
Christophe

[RobertOToole]

FYI,

In 2018 I tested the Mitutoyo 5x and 7,5x M Plan APO test, both at 5x, comparing wafer test images against a few other lenses.

https://www.closeuphotography.com/5x-lens-test

5x.jpg



Also in 2018, I tested the Mitutoyo 10x M Plan APO against 3 other lenses.


https://www.closeuphotography.com/mitut ... m-plan-apo (also from 2018).


10x.jpg

Best,

Robert

Merci Robert,
Je connais votre site que je visite régulièrement.
Je n'avais pas vu ce test, mais vous n'avez pas réalisé de comparatif direct entre le Mitu 5x et le 7,5x ?
Cdt
Christophe

Salut Christophe,

En ce moment , je ne les ai pas encore comparés directement en raison de la différence dans NA, mais voici les crops pour vous à comparer.

Je suis d’accord avec Chris que le 7.5x est un peu mieux ca correction et IQ que le plan 5x M.

_____________________________________________________________________________


At the time I did not compare them directly due to the difference in NA but here are the crops for you to compare.

I agree with Chris that the 7.5x has a bit better CA correction and IQ than the 5x M Plan.



_____________________________________________________________________________


Remember the 7.5x is pushed down in this test.

5x M Plan Center 100% view crop

5x M Plan Corner 100% view crop

7.5x M Plan Center 100% view crop

7.5x M Plan Corner 100% view crop

[christophepelle]

FYI,

In 2018 I tested the Mitutoyo 5x and 7,5x M Plan APO test, both at 5x, comparing wafer test images against a few other lenses.

https://www.closeuphotography.com/5x-lens-test

5x.jpg



Also in 2018, I tested the Mitutoyo 10x M Plan APO against 3 other lenses.


https://www.closeuphotography.com/mitut ... m-plan-apo (also from 2018).


10x.jpg

Best,

Robert

Merci Robert,
Je connais votre site que je visite régulièrement.
Je n'avais pas vu ce test, mais vous n'avez pas réalisé de comparatif direct entre le Mitu 5x et le 7,5x ?
Cdt
Christophe

Salut Christophe,

En ce moment , je ne les ai pas encore comparés directement en raison de la différence dans NA, mais voici les crops pour vous à comparer.

Je suis d’accord avec Chris que le 7.5x est un peu mieux ca correction et IQ que le plan 5x M.

_____________________________________________________________________________


At the time I did not compare them directly due to the difference in NA but here are the crops for you to compare.

I agree with Chris that the 7.5x has a bit better CA correction and IQ than the 5x M Plan.



_____________________________________________________________________________


Remember the 7.5x is pushed down in this test.



Full-image-at-5x-with-outlines-www-Closeuphotography-com.jpg




5x M Plan Center 100% view crop


Mitutoyo-M-Plan-Apo-5X-0.14-100-precent-center-crops-Closeuphotography.com.jpg


5x M Plan Corner 100% view crop


Mitutoyo-M-Plan-Apo-5X-0.14-objective-100-precent-center-crops-Closeuphotography.com.jpg


7.5x M Plan Center 100% view crop



Mitutoyo-M-Plan-Apo-7-5X-0.21-100-precent-center-crops-Closeuphotography.com.jpg



7.5x M Plan Corner 100% view crop



Mitutoyo-M-Plan-Apo-7.5X-0.21-objective-at-5x-100-precent-corner-crops-Closeuphotography.com.jpg

Merci Robert,

oui effectivement, merci.
Mais vaut il la différence de prix (du simple au double) ..