photo of the day Maybe it has been posted before, but I would like to know with what camera/objective the "photo of the day" pictures were taken. It would also be informative if focus-stacking was used. The pictures are always quite good and one can learn from that. Regards Rolf http://www.mindat.org/forum.php?read,13,244439,244439#msg-244439 Sat, 18 May 2013 21:19:03 +0000 Phorum 5.2.15a http://www.mindat.org/forum.php?read,13,244439,246090#msg-246090 Re: photo of the day http://www.mindat.org/forum.php?read,13,244439,246090#msg-246090 Jolyon & Katya Ralph Mineral Photography Mon, 19 Dec 2011 20:03:25 +0000 http://www.mindat.org/forum.php?read,13,244439,246088#msg-246088 Re: photo of the day http://www.mindat.org/forum.php?read,13,244439,246088#msg-246088 -------------------------------------------------------
> I see regulary them because i like to see others
> to progress.... But it' not your case that
> seems...

ahahahaha....I am every time in progress but its your eyes not seen the difference :-D]]> Matteo Chinellato Mineral Photography Mon, 19 Dec 2011 19:47:24 +0000 http://www.mindat.org/forum.php?read,13,244439,246087#msg-246087 Re: photo of the day http://www.mindat.org/forum.php?read,13,244439,246087#msg-246087 Frédéric Hède Mineral Photography Mon, 19 Dec 2011 19:45:14 +0000 http://www.mindat.org/forum.php?read,13,244439,246086#msg-246086 Re: photo of the day http://www.mindat.org/forum.php?read,13,244439,246086#msg-246086 -------------------------------------------------------
> Interesting... I prefer photos in book ....
>
> In fact, here we have the demonstration of your
> capacity to show ypur professionalism.. I post
> regulary in great size my bad photo... Just for
> the pleasure. Free for all.... ;)


you go in my gallery here and you have all measures you want, its only at 7000 photos to control. And now I not lost any other time for answer in this post.]]> Matteo Chinellato Mineral Photography Mon, 19 Dec 2011 19:43:32 +0000 http://www.mindat.org/forum.php?read,13,244439,246085#msg-246085 Re: photo of the day http://www.mindat.org/forum.php?read,13,244439,246085#msg-246085
In fact, here we have the demonstration of your capacity to show ypur professionalism.. I' ll posted regulary in great size my bad photo... Just for the pleasure. Free for all.... ;) and with good resolution]]> Frédéric Hède Mineral Photography Mon, 19 Dec 2011 19:41:38 +0000 http://www.mindat.org/forum.php?read,13,244439,246083#msg-246083 Re: photo of the day http://www.mindat.org/forum.php?read,13,244439,246083#msg-246083 -------------------------------------------------------
> If we don't work for magazine we are bad ?
> Haha.... I can't tell more....
>
> It's unbelievable to read that !
>
> Send me something.... all the size is good for
> me....


for sure with your photos no. Ah, I am informed on french magazines you have say they not pay, they pay....but for quality photos.
And just for understand the person here, go to here [www.mindat.org] normaly a similar person I call " the portrait of modesty " hahahhaha]]> Matteo Chinellato Mineral Photography Mon, 19 Dec 2011 19:33:22 +0000 http://www.mindat.org/forum.php?read,13,244439,246082#msg-246082 Re: photo of the day http://www.mindat.org/forum.php?read,13,244439,246082#msg-246082
It's unbelievable to read that !

Send me something.... all the size is good for me....]]> Frédéric Hède Mineral Photography Mon, 19 Dec 2011 19:29:00 +0000 http://www.mindat.org/forum.php?read,13,244439,246081#msg-246081 Re: photo of the day http://www.mindat.org/forum.php?read,13,244439,246081#msg-246081
I'd like compare my technic with others and i need to take a same specimen to see but i don't find someone for make that.... Matteo, Dominik or others i'm waiting you. Just for the pleasure.... I'm not professional, just an amateur....]]> Frédéric Hède Mineral Photography Mon, 19 Dec 2011 19:25:29 +0000 http://www.mindat.org/forum.php?read,13,244439,246080#msg-246080 Re: photo of the day http://www.mindat.org/forum.php?read,13,244439,246080#msg-246080 -------------------------------------------------------
> Her are some examples what some can achieve with
> small FOVs
>
> Jean-Marc Johannet
>
> [www.mindat.org] FOV 1,5mm
> [www.mindat.org] FOV 1,5mm
> [www.mindat.org] FOV 1mm
> [www.mindat.org] FOV 0,5mm
> [www.mindat.org] FOV 0,7mm
> [www.mindat.org] FOV 1mm
>
> Fred Kruijen
>
> [www.mindat.org] FOV 1,5mm
> [www.mindat.org] FOV +/-
> 1mm
>
> Jean Claude Dol
>
> [www.mindat.org] FOV 1mm
> [www.mindat.org] FOV 1,5mm


THIS are photos, not sure what I have seen here over....not to say all 3 work for professional magazines]]> Matteo Chinellato Mineral Photography Mon, 19 Dec 2011 19:19:10 +0000 http://www.mindat.org/forum.php?read,13,244439,246079#msg-246079 Re: photo of the day http://www.mindat.org/forum.php?read,13,244439,246079#msg-246079 -------------------------------------------------------
> Again and again the same discussion which comes
> out from time to time....
>
> I am wondering Chinellato are you trying to teach
> us or is this a show of egomania?
>
> I guess all mindat knows you have 15000 euro
> equipment (good for you, I don't and don't want),
> if that is worth or not is not by business, but
> this is not a good reason (in my opinion) to
> always criticize someone else work. Do you think
> your comments are helpful? they only lead to
> irritation and do not bring anything good to you,
> to the other participants and readers. Is that so
> difficult to have an adult discussion, with a
> fruitful exchange of ideas and opinions??
>
> btw Chinellato one more comment, doesn't your
> signature say "equipment is only the beginning,
> the photographer plays the major role"? and than
> you say you need 15000 euro equipment, it's not a
> good commercial for you skills.
>
> just to conclude, I do photo because I enjoy it
> and whenever I can I'm glad to share my
> experience, to learn from someone else, or to help
> beginners.


for sure I have teach to you seen you have ask to me some technique opinions time ago on mineralogical photos, I have the emails.

it's not a good commercial for you skills.

depend, for the moment the persons give work to me have another idea, for my professionalism in my work and other.]]> Matteo Chinellato Mineral Photography Mon, 19 Dec 2011 19:17:09 +0000 http://www.mindat.org/forum.php?read,13,244439,246075#msg-246075 Re: photo of the day http://www.mindat.org/forum.php?read,13,244439,246075#msg-246075
Jean-Marc Johannet

[www.mindat.org] FOV 1,5mm
[www.mindat.org] FOV 1,5mm
[www.mindat.org] FOV 1mm
[www.mindat.org] FOV 0,5mm
[www.mindat.org] FOV 0,7mm
[www.mindat.org] FOV 1mm

Fred Kruijen

[www.mindat.org] FOV 1,5mm
[www.mindat.org] FOV +/- 1mm

Jean Claude Dol

[www.mindat.org] FOV 1mm
[www.mindat.org] FOV 1,5mm]]> Harjo Neutkens Mineral Photography Mon, 19 Dec 2011 19:07:02 +0000 http://www.mindat.org/forum.php?read,13,244439,246073#msg-246073 Re: photo of the day http://www.mindat.org/forum.php?read,13,244439,246073#msg-246073
Yes they are some noise (czp can done better) but the resolution is better than your pirochlore. We can see details.... Anf for that just an objective 4X and for 23 dollars you find the same quality on ebay...


]]> Frédéric Hède Mineral Photography Mon, 19 Dec 2011 18:59:22 +0000 http://www.mindat.org/forum.php?read,13,244439,246072#msg-246072 Re: photo of the day http://www.mindat.org/forum.php?read,13,244439,246072#msg-246072
I am wondering Chinellato are you trying to teach us or is this a show of egomania?

I guess all mindat knows you have 15000 euro equipment (good for you, I don't and don't want), if that is worth or not is not by business, but this is not a good reason (in my opinion) to always criticize someone else work. Do you think your comments are helpful? they only lead to irritation and do not bring anything good to you, to the other participants and readers. Is that so difficult to have an adult discussion, with a fruitful exchange of ideas and opinions??

btw Chinellato one more comment, doesn't your signature say "equipment is only the beginning, the photographer plays the major role"? and than you say you need 15000 euro equipment, it's not a good commercial for you skills.

just to conclude, I do photo because I enjoy it and whenever I can I'm glad to share my experience, to learn from someone else, or to help beginners.]]> Dario Cericola Mineral Photography Mon, 19 Dec 2011 18:54:44 +0000 http://www.mindat.org/forum.php?read,13,244439,246069#msg-246069 Re: photo of the day http://www.mindat.org/forum.php?read,13,244439,246069#msg-246069
For me magazines are not important, when i look in these magasines, their photo are not enough good for than i paid for that....

I make new photo... i give example of definition if you want in the same size = 1.4 mm okay ? All here could compare... I 'll prefer take your clinochlore and all could be seen the difference.]]> Frédéric Hède Mineral Photography Mon, 19 Dec 2011 18:38:22 +0000 http://www.mindat.org/forum.php?read,13,244439,246067#msg-246067 Re: photo of the day http://www.mindat.org/forum.php?read,13,244439,246067#msg-246067 -------------------------------------------------------
> Matteo you are a true professional.... But in fact
> you don't listen me and you are not able to make
> similar photo. I you don't want learning it's not
> my problem. Pyrochlore is a low resolution photo,
> sorry but i think than all good photographer here
> think that...
>
> If you want i can make a true photo to compare but
> you can't send me this specimen...
>
> For make a 0.35 mm FOV photo 10 or 30 photo it's
> just ridiculous....


hahahaha...ok ok stay with your idea, I am not professional but strange, Lapis use my photos, Mineralien Welt use my photos, Mineralogical Record use my photos, Gems & Gemmology use my photos and and also used for courses of G.I.A., Rivista Mineralogica Italian just in the last number I had just 3 articles with all my pictures and of specimens under the 1 mm of crystal....strange all this magazines want my photos if I am not professional, and not for speack of the many private collectors or museums or university pay on contract for have photos take by me.]]> Matteo Chinellato Mineral Photography Mon, 19 Dec 2011 18:24:42 +0000 http://www.mindat.org/forum.php?read,13,244439,246066#msg-246066 Re: photo of the day http://www.mindat.org/forum.php?read,13,244439,246066#msg-246066
Deconvolution is not for me for the moment (but It's an interessant thing....). I must try a freeware for see. Do you have try these freeware ?

But in fact it's for lowest FOV under 1 mm....


Isaid that because i use an atypic system that all. My plate is very simple because i don't need a great precision.... But i can done 0.1 µm for stacking... i'm not limited for the number of image....

For matteo it's not usefull :).]]> Frédéric Hède Mineral Photography Mon, 19 Dec 2011 18:24:16 +0000 http://www.mindat.org/forum.php?read,13,244439,246064#msg-246064 Re: photo of the day http://www.mindat.org/forum.php?read,13,244439,246064#msg-246064
If you want i can make a true photo to compare but you can't send me this specimen...

For make a 0.35 mm FOV photo 10 or 30 photo it's just ridiculous....]]> Frédéric Hède Mineral Photography Mon, 19 Dec 2011 18:17:57 +0000 http://www.mindat.org/forum.php?read,13,244439,246056#msg-246056 Re: photo of the day http://www.mindat.org/forum.php?read,13,244439,246056#msg-246056 Matteo Chinellato Mineral Photography Mon, 19 Dec 2011 17:41:13 +0000 http://www.mindat.org/forum.php?read,13,244439,246055#msg-246055 Re: photo of the day http://www.mindat.org/forum.php?read,13,244439,246055#msg-246055 -------------------------------------------------------
> Matteo sorry but you are not so professional....
>
> In these size it's an obligation to take a lot of
> photo... Depth of view is very limited for theses
> field of view by numerical aperture. With a 20X
> she is near 1.5 to 2µm....
>
> It's important to understand this point....
>
> There is no normaly here.... Just an obligation.
> With à 4X it's near 15 µm.....
>
> Perhaps could you learn more if you listen more ?
>
> Fred


320 photos for have a similar result, sorry but for me its only time wasted. With only 10 photos I have the same results if not better, all my gallery photos is take with max of 20 photos in multifocus, not over. Just for say the pyroclore example its take with only 7 photos and I not have halos, blurred image etc....]]> Matteo Chinellato Mineral Photography Mon, 19 Dec 2011 17:39:38 +0000 http://www.mindat.org/forum.php?read,13,244439,246051#msg-246051 Re: photo of the day http://www.mindat.org/forum.php?read,13,244439,246051#msg-246051 you said in an earlier post that you didnt have the limitations of a classical system: were you referring to photography without stacking, or are you using more advanced processing than simple stacking ( e.g. deconvolution ?)]]> Dominik Schläfli Mineral Photography Mon, 19 Dec 2011 17:05:07 +0000 http://www.mindat.org/forum.php?read,13,244439,246039#msg-246039 Re: photo of the day http://www.mindat.org/forum.php?read,13,244439,246039#msg-246039
In these size it's an obligation to take a lot of photo... Depth of view is very limited for theses field of view by numerical aperture. With a 20X she is near 1.5 to 2µm....

It's important to understand this point....

There is no normaly here.... Just an obligation. With à 4X it's near 15 µm.....

Perhaps could you learn more if you listen more ?

Fred]]> Frédéric Hède Mineral Photography Mon, 19 Dec 2011 15:17:46 +0000 http://www.mindat.org/forum.php?read,13,244439,246006#msg-246006 Re: photo of the day http://www.mindat.org/forum.php?read,13,244439,246006#msg-246006 Matteo Chinellato Mineral Photography Mon, 19 Dec 2011 10:34:59 +0000 http://www.mindat.org/forum.php?read,13,244439,246003#msg-246003 Re: photo of the day http://www.mindat.org/forum.php?read,13,244439,246003#msg-246003
(when server wil be ok)


And i'm intersting by links with photo were we can seen fov between 0.6 mm - 0.3 mm not MEB also....

Because i read a lot of things but i see nothing... Yes it's unperfect but in these size i see nobody.


]]> Frédéric Hède Mineral Photography Mon, 19 Dec 2011 10:22:33 +0000 http://www.mindat.org/forum.php?read,13,244439,245991#msg-245991 Re: photo of the day http://www.mindat.org/forum.php?read,13,244439,245991#msg-245991
hum the increment is normally good i can make more if i want, i can try better. In fact my system have no limitation as classic system and the maximal precision is 0.1 µm or less....

Ok i try more.... But i think tan the limitation is just diffraction.]]> Frédéric Hède Mineral Photography Mon, 19 Dec 2011 06:46:19 +0000 http://www.mindat.org/forum.php?read,13,244439,245990#msg-245990 Re: photo of the day http://www.mindat.org/forum.php?read,13,244439,245990#msg-245990 -------------------------------------------------------
> Matteo Chinellato Wrote:
> --------------------------------------------------
> -----
> > well here the group of yellow pyroclore of 0.26
> mm
> > into a cavity, files are not worked, in the
> first
> > is normaly format, in the second its a cut and
> a
> > crop of the group, not worked the same
> >
> >
> [s02.imageupper.com]
>
> > _2.jpg
> >
> >
> [s02.imageupper.com]
>
> > _1.jpg
> >
> > the end work is here
> > [www.mindat.org]
>
>
> Matteo, these photos clearly show the limitations
> of Luminars and Photars. For this subject size,
> you would probably take a 12.5 Photar at full
> bellows extension. Even when used with completely
> open aperture, the effective aperture is way
> beyond the diffraction limit. In addition, the
> working distance is so small that lighting becomes
> a problem. For this subject size I would choose a
> 40X objective and if you take a ELWD version you
> still have substantially more working distance
> than with a Photar. However, at this magnification
> one has to be extremely careful to avoid even the
> slightest vibration. As a Canon user, you have at
> least the advantage of the silent mode which
> mitigates the problems caused by mirror slap and
> shutter curtain. But even a car passing outside
> the house might have negative influence on the
> quality :). I think with microscope objectives you
> may achieve acceptable print quality down to a FOV
> of about 0.1 mm, given you have an absolutely
> vibration-free set-up. Anything smaller than that
> I guess SEM is the only serious option.
> Cheers


I use everytime the live view of the camera, the problem is moving the bellow with hands, when I have extra money I buy the computed micrometer slide just for not tuch the bellow. But similar photos its for me, and other photographers, only for SEM]]> Matteo Chinellato Mineral Photography Mon, 19 Dec 2011 06:25:07 +0000 http://www.mindat.org/forum.php?read,13,244439,245988#msg-245988 Re: photo of the day http://www.mindat.org/forum.php?read,13,244439,245988#msg-245988 -------------------------------------------------------
> well here the group of yellow pyroclore of 0.26 mm
> into a cavity, files are not worked, in the first
> is normaly format, in the second its a cut and a
> crop of the group, not worked the same
>
> [s02.imageupper.com]
> _2.jpg
>
> [s02.imageupper.com]
> _1.jpg
>
> the end work is here
> [www.mindat.org]


Matteo, these photos clearly show the limitations of Luminars and Photars. For this subject size, you would probably take a 12.5 Photar at full bellows extension. Even when used with completely open aperture, the effective aperture is way beyond the diffraction limit. In addition, the working distance is so small that lighting becomes a problem. For this subject size I would choose a 40X objective and if you take a ELWD version you still have substantially more working distance than with a Photar. However, at this magnification one has to be extremely careful to avoid even the slightest vibration. As a Canon user, you have at least the advantage of the silent mode which mitigates the problems caused by mirror slap and shutter curtain. But even a car passing outside the house might have negative influence on the quality :). I think with microscope objectives you may achieve acceptable print quality down to a FOV of about 0.1 mm, given you have an absolutely vibration-free set-up. Anything smaller than that I guess SEM is the only serious option.
Cheers]]> Harald Schillhammer Mineral Photography Mon, 19 Dec 2011 06:00:19 +0000 http://www.mindat.org/forum.php?read,13,244439,245986#msg-245986 Re: photo of the day http://www.mindat.org/forum.php?read,13,244439,245986#msg-245986 -------------------------------------------------------
> Matteo i prepare this photo and she is not
> horrible.... If you can't, i understand. The
> Beraunite is not horrible, she is limited by
> diffraction and in fact she is very good for the
> size...


Fred, I think diffraction is the minor problem in this photo. I can see focus banding, i.e., the stepping increments are too large - not enough overlap. What is the numerical aperture of your 20X objective? Usually, 20X objectives have a DOF of a little more than 2 microns, that means you would need stepping increments of less than 2 microns. Also, the quality of that lens looks a bit soft to me.
Cheers]]> Harald Schillhammer Mineral Photography Mon, 19 Dec 2011 05:46:51 +0000 http://www.mindat.org/forum.php?read,13,244439,245938#msg-245938 Re: photo of the day http://www.mindat.org/forum.php?read,13,244439,245938#msg-245938
an another photo come after, first try with statistic method....


=> No significative difference.]]> Frédéric Hède Mineral Photography Sun, 18 Dec 2011 21:55:16 +0000 http://www.mindat.org/forum.php?read,13,244439,245936#msg-245936 Re: photo of the day http://www.mindat.org/forum.php?read,13,244439,245936#msg-245936
And here it's just for fun, in 1.4 mm of FOV i can give much more than you i think... Send me if you want :)

Friendly

Fred]]> Frédéric Hède Mineral Photography Sun, 18 Dec 2011 21:51:15 +0000 http://www.mindat.org/forum.php?read,13,244439,245934#msg-245934 Re: photo of the day http://www.mindat.org/forum.php?read,13,244439,245934#msg-245934 -------------------------------------------------------
> I take same quality and perhaps better with simple
> close-up Matteo....
>
> friendly
>
> Fred


depend how many is possible for you cut the photo, with full frame I cut how many times I want with no lost of resolution, if I cut the photo take with 40D I lost the resolution immediatly]]> Matteo Chinellato Mineral Photography Sun, 18 Dec 2011 21:50:02 +0000