John Ellis

John Ellis

Lives in United States Gainesville, VA, United States
Works as a MD (OccMed)
Joined on May 23, 2001
About me:

John is a now retired MD and amateur photographer, lives in Northern VA, uses PS and Lightroom, now using a Sony A7. Completed the NYIP Professional Photography course. Most of my photos now just go to Facebook. Email is


Total: 22, showing: 1 – 20
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In reply to:

John Bean (UK): "the cathode (positive) and anode (negative) electrodes"

Hmm, positive electrons ;-)

Electrons are elections. They have a negative charge. Chemistry 100 if you have not taken it.

Link | Posted on Oct 21, 2016 at 15:15 UTC

I think sensors are like boats, diamonds, etc. Add a foot or so to a 20 foot boat and the price doubles. Two carets is 4 times more than one caret, etc. Some law must describe this phenomenon.

Link | Posted on Sep 19, 2016 at 12:43 UTC as 22nd comment
On photo DSCN3708FTL in Augustin Man's photo gallery (2 comments in total)

All told, these are amazing photos--very high quality at long zoom and make me want to look into a P900 to just have along on trips. Great wildlife photos here; good work!

Link | Posted on Apr 21, 2016 at 22:26 UTC as 2nd comment | 1 reply
On photo ESCN5692FTL in Augustin Man's photo gallery (2 comments in total)

Horrible, murderous house sparrows that have decimated song birds everywhere. The person that though it was such a good idea to bring over here from Europe all the birds in Shakespeare's plays should have been hanged. These birds are one of only a few not protected by federal law, so shoot away at them. If you live in a new subdivision you will have normal songbirds for only awhile and then these monsters move in and kill your bluebirds in their nests.

Link | Posted on Apr 21, 2016 at 22:23 UTC as 1st comment | 1 reply
On article Sony Alpha 7 Review (1599 comments in total)

How to get rid of the level in the EVF? I managed to turn it off in the LCD but not in the EVF. And what is the Zebra markings do? What does it have to do with brightness?

Link | Posted on Dec 14, 2015 at 19:20 UTC as 34th comment
On article Tamron SP 150-600mm F/5-6.3 Di VC USD Lab Test Review (268 comments in total)

Fuzzy at the telephoto end? Why else would I want a telephoto? Can't they make them sharp at the far end and horrible at the near end where I could care less?

Link | Posted on Jun 26, 2014 at 17:32 UTC as 67th comment | 7 replies
On article Am I missing something here? (627 comments in total)

Any enthusiast camera without a provided viewfinder leaves me cold. I can see this system as having a lot of potential. The new telephoto zoom is impressive, especially for the nature crowd. Hopefully (very) Nikon will continue to evolve this new system and if so, I will gladly part with 3K for a system I can use for general photography and the occasional walk in the several national forests not far from DC, looking for more birds to complete my life list. If Nikon does not evolve this system, at least Tamron has a new telephoto zoom I can use with a FF or APS sensor camera.

Link | Posted on Mar 17, 2014 at 17:57 UTC as 46th comment | 2 replies
On article Nikon 1 V3: a quick summary (596 comments in total)

Right on about just waiting for a used one. Same goes for S-model Mercedes and a lot of other high priced products; no matter how good they are if only the new ones go to the well-healed look for some real bargains in a year or two. I will say that finally, some long lenses are coming out for these smaller cameras and for us birders, a welcome trend as I finally had to part with my coveted N 400/2.8 I just could not lift anymore. I just do not see buying new on these things any longer as they plummet in price so quickly.

Link | Posted on Mar 14, 2014 at 18:54 UTC as 42nd comment
On article Did Sigma design the Olympus M.Zuiko 75mm F1.8? (200 comments in total)

Wish Sigma would start some nice Fuji-X lenses such as this. My X-E1 is waiting!

Link | Posted on Aug 30, 2013 at 00:16 UTC as 17th comment

Does it really help for the overwhelming most of us who view our pictures on just average laptops and sharing them on the web or printing them on inkjets that cannot come close to showing all the color? Would certainly be nice if it could be appreciated and I guess in commercial work it might. Am I right?

Link | Posted on Feb 15, 2013 at 12:24 UTC as 19th comment | 2 replies
In reply to:

grafli: They don't have to make it in Canon Mount. ;-)

Well, I see nothing to induce me to buy it. Nobody wants to develop decently fast long glass for APS, it appears. Every stop basically doubles the price and so does going from APS to FX, like boats a foot longer, and I just do not understand the problem. Surely there are more APS cameras sold than full frame by now.

Link | Posted on Feb 4, 2012 at 20:04 UTC
In reply to:

grafli: They don't have to make it in Canon Mount. ;-)

So is this made for APS only or not? My biggest problem with APS is that there have been no APS telephotos for the mount. Even Pana has the 100-300 4/3 lens that is pretty darned good. I am really tired of hauling around full frame teles for birds and wildlife on DX cameras. Useless weight and expense.

Link | Posted on Feb 3, 2012 at 22:09 UTC
On photo ISO_100 in dpreview review samples's photo gallery (9 comments in total)

Looks amazing to me and if anything better than my first Canon digital, the D30 I paid a ton for. The progress in sensors is astounding. It is getting to where the only real advantage of the larger sensors is to blur backgrounds.

Link | Posted on Jan 14, 2012 at 13:50 UTC as 6th comment | 1 reply
On a photo in the Canon PowerShot G1 X Preview Samples sample gallery (9 comments in total)

Looks amazing to me and if anything better than my first Canon digital, the D30 I paid a ton for. The progress in sensors is astounding. It is getting to where the only real advantage of the larger sensors is to blur backgrounds.

Link | Posted on Jan 14, 2012 at 13:50 UTC as 6th comment | 1 reply
On article CES 2012: Samsung stand report (20 comments in total)

Where is the NX-20?

Link | Posted on Jan 13, 2012 at 00:21 UTC as 2nd comment
On article Adobe faces criticism for change of upgrade policy (375 comments in total)
In reply to:

Mr Fartleberry: You'd think Adobe would try to encourage more licensed seats rather than drive people away, eh Grumpy?

Yes, Corel's founder almost bankrupted them years back in folly and mismanagement and this is a gift from heaven for them to seize the moment and get its presence back in a big way. I am not sure if PaintShop Pro does raw picuteres or not but either way, they need to get with it. I always liked Paintshop and would gladly return.

Link | Posted on Nov 23, 2011 at 00:03 UTC
On article Fujifilm announces X10 high-end enthusiast compact (279 comments in total)

Love it! Somebody is really listening and I will be one of the first to order one. These non-viewfinder things are to me absurd and I just cannot handle them. This looks to be a very upscale enthusiast camera, just perfect for me.

Link | Posted on Sep 2, 2011 at 22:24 UTC as 45th comment | 1 reply
In reply to:

jj74e: Hm...I always see stuff on their website about their Fujinon lenses being world class, and I always wonder if that's just marketing or if their lenses really were high quality at some point.

Yes, an interchangable lens camera with a real viewfinder. I think Samsung has it right in their Nx10 series but lacks lenses. A good EVF, hot shoe and lots of lenses for me. I cannot stand any of these compacts with no viewfinders. Will not touch one.

Link | Posted on Jul 7, 2011 at 10:57 UTC
On article Leica launches M9-P professionally targeted rangefinder (100 comments in total)
In reply to:

jmmgarza: This beautiful camera is another piece of jewelry for the rich and decadent. Precious few will see service in journalism. I would love to have one.

I will have to hope for a professional MFT camera and what few additional Leica lenses will be offered for it. Of course, some people would say that "professional" and MFT are by design, incompatible. Still, I believe I would be OK with that. Just can't justly, much less afford a M9.

Link | Posted on Jun 28, 2011 at 17:19 UTC
On photo Lotus in the Beautiful MICRO 4/3 challenge (1 comment in total)

Hard to believe the talent here and the quality of these new cameras. Keep it up, very good work.

Link | Posted on Feb 11, 2010 at 04:11 UTC as 1st comment
Total: 22, showing: 1 – 20
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