Dimitris Servis

Lives in Switzerland Switzerland
Has a website at www.coloraberration.com
Joined on Sep 27, 2009

Comments

Total: 150, showing: 1 – 20
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On article Canon patent shows curved sensor design (98 comments in total)

finally

Link | Posted on Dec 5, 2016 at 16:00 UTC as 6th comment
On article New kid on the block: YI M1 review (708 comments in total)

A B&W only version could be interesting

Link | Posted on Dec 1, 2016 at 12:21 UTC as 22nd comment | 1 reply
In reply to:

OlyPent: Be nice if APC and FF would go 4:3. No penalty for using more of the image circle.

Tell that to all the MF 645 shooters of the past decades...

Link | Posted on Nov 10, 2016 at 11:41 UTC
On article Nikon D500 versus D750: Which one is right for you? (378 comments in total)
In reply to:

Joed700: I've just discovered something very interesting...sample images from Imaging Resource: http://www.imaging-resource.com/IMCOMP/COMPS01.HTM
revealed that the D500's images are actually sharper than the D750 from ISO 100-3200. The D750's only advantage is it has less noise from ISO 6400 and on, but not sharper. Dxxn the AA filter on the D750...!

Sorry for the (too) late response. Think of it like this: put a DX lens on D810 and compare it to D500. That's a fair comparison.

Link | Posted on Oct 11, 2016 at 09:39 UTC
On article Nikon D500 versus D750: Which one is right for you? (378 comments in total)
In reply to:

Joed700: I've just discovered something very interesting...sample images from Imaging Resource: http://www.imaging-resource.com/IMCOMP/COMPS01.HTM
revealed that the D500's images are actually sharper than the D750 from ISO 100-3200. The D750's only advantage is it has less noise from ISO 6400 and on, but not sharper. Dxxn the AA filter on the D750...!

@Joed700 I disagree: taking into account the crop factor you are comparing sensors with the same resolution. Applying the 1.5 crop factor to the 36 MP of D810 you end up with a sensor with 24 MP and if I recall correctly pixel size and pitch are the same for the two sensors. So if you would like to compare sharpness, that would be the way to go IMHO.

Link | Posted on Aug 2, 2016 at 11:29 UTC
On article Nikon D500 versus D750: Which one is right for you? (378 comments in total)

For me, either camera serves a purpose. The point is whether the new Nikon offers the level of refinement that we see in Olympuses and Fujis lately. I have the D750 and the body is terrible, both the feeling of the body itself and the UX and features... I am actually thinking whether it would make sense to only keep Nikon for film and go all the way to Fuji (and of course keep my beloved OM-D E-M5)

Link | Posted on Aug 1, 2016 at 12:48 UTC as 10th comment | 5 replies
On article Nikon D500 versus D750: Which one is right for you? (378 comments in total)
In reply to:

Glen78: I am thinking if you do not already know which one is best for you before reading this article then probably neither is best for you.

There's always someone that provides this feedback in all kinds of comparisons everywhere in the web

Link | Posted on Aug 1, 2016 at 12:40 UTC
On article Nikon D500 versus D750: Which one is right for you? (378 comments in total)
In reply to:

Joed700: I've just discovered something very interesting...sample images from Imaging Resource: http://www.imaging-resource.com/IMCOMP/COMPS01.HTM
revealed that the D500's images are actually sharper than the D750 from ISO 100-3200. The D750's only advantage is it has less noise from ISO 6400 and on, but not sharper. Dxxn the AA filter on the D750...!

Shouldn't you compare against D810 wrt sharpness?

Link | Posted on Aug 1, 2016 at 12:37 UTC

I got the camera back from service. The shutter seems to work fine, however in live view it makes a really strange metallic sound like an old mechanic camera (which might be good news). Did anyone else noticed a change in shutter sound in live view?

Thanks

Link | Posted on Apr 23, 2016 at 22:07 UTC as 4th comment

How are these different in functionality to Cactus?

Link | Posted on Mar 17, 2016 at 23:31 UTC as 1st comment
On article Using third-party lenses on the Sony a7 / a7R (523 comments in total)
In reply to:

Dimitris Servis: A word of caution: do not put junk store lenses on your camera unless inspected for fungi. A contaminated lens may contaminate your camera and every lens you put on it.

@kickoff3pm, "total" is an understatement. Ignorants say "sheer"

Link | Posted on Mar 11, 2016 at 21:31 UTC
On article Massive $33,500 2450mm f/8 NASA lens surfaces on eBay (235 comments in total)
In reply to:

Dimitris Servis: "The aperture, f/8, is likely fixed." DPR, it wouldn't be a bad idea to explain what f8 really, really means to people...

People reading this article will not buy this lens

Link | Posted on May 9, 2015 at 19:24 UTC
On article Massive $33,500 2450mm f/8 NASA lens surfaces on eBay (235 comments in total)
In reply to:

mosc: It's no accident that telescopes describe the aperture size rather than the focal length and f-stop. At infinite focus, the focal length and f-stop are both means to the same ends: More light from a small object that doesn't fill the frame. A FF DSLR focused at infinity would get very similar detail out of a 600mm f4 lens as it would a 1200mm f8 lens. They're both 125mm aperture size lenses, more commonly described as 5" telescope.

This thing can be described in the very confusing magnitudes of 2450mm f8 for a 0.50 crop (compared to FF) camera or a 1225mm f4 FF lens or better yet just a 12" aperture reflector with a rather large mount built in. 12" reflector telescopes are for sale on amazon for little more than $1,000 that are probably pretty close to this optically

Though I suppose the lens may be capable of adjusting it's focal distance to something shorter than infinity? If so that's a lot more engineering for your dollar.

Telescopes are specified by clear aperture size and f number from which you can calculate the focal length. The diameter of a photographic lens cannot be easily used in this context.

For the rest I am not sure I understand what you are trying to say and what it has to do with crop factors, but I am not sure you understand either...

What is "focal distance" to you and what distance shorter than infinity would you expect a 2450mm lens to focus on?

Link | Posted on May 2, 2015 at 07:27 UTC
On article Massive $33,500 2450mm f/8 NASA lens surfaces on eBay (235 comments in total)

"The aperture, f/8, is likely fixed." DPR, it wouldn't be a bad idea to explain what f8 really, really means to people...

Link | Posted on May 2, 2015 at 06:31 UTC as 8th comment | 2 replies
On article Massive $33,500 2450mm f/8 NASA lens surfaces on eBay (235 comments in total)

Why not this?

http://www.meade.com/products/telescopes/lx850/lx850-acf-14-f-8.html

Link | Posted on May 2, 2015 at 06:20 UTC as 9th comment | 1 reply
On article Using third-party lenses on the Sony a7 / a7R (523 comments in total)
In reply to:

Dimitris Servis: A word of caution: do not put junk store lenses on your camera unless inspected for fungi. A contaminated lens may contaminate your camera and every lens you put on it.

So then give it a try :)

Link | Posted on Apr 24, 2015 at 07:43 UTC

Took my D750 for fixing the flare issue to the Nikon Swiss repair center. Got it back exactly the same, only with a white fluffy speck on the mirror.

Link | Posted on Apr 11, 2015 at 14:02 UTC as 70th comment | 2 replies
In reply to:

Dimitris Servis: Hydrophobic

Not sure what you mean exactly, these are very precisely defined chemical properties, not to mention the language these terms originate from

"A hydrophilic molecule or portion of a molecule is one that has a tendency to interact with or be dissolved by water and other polar substances."

http://en.wikipedia.org/wiki/Hydrophile

So you mean the filter molecules, will in time dissolve in the rain?

Link | Posted on Mar 9, 2015 at 14:50 UTC

Hydrophobic

Link | Posted on Mar 4, 2015 at 07:51 UTC as 1st comment | 2 replies
On article Nikon D750 flare investigated: Why we're not worried (352 comments in total)

There will be a time when people will sell D600 with oil splash effects and D750 with flare issues as collectors' items.

Link | Posted on Jan 21, 2015 at 07:45 UTC as 84th comment | 1 reply
Total: 150, showing: 1 – 20
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