Ed Overstreet

Ed Overstreet

Lives in Canada Canada
Works as a retired
Joined on Feb 3, 2003

Comments

Total: 8, showing: 1 – 8
On Panasonic Lumix DMC-G7 Review preview (429 comments in total)
In reply to:

Ed Overstreet: I tested both my new G7 and my GX7 with three lenses, using an Edmund Scientific Company Lens Resolving Power chart. Cameras set for shutter priority, on a tripod (OIS turned off) cycled through all shutter speeds at 1/3 increments 1/25 through 1/250, fired using 2-second self-timer.

Consistently I get maybe a one-step improvement in line pairs per mm resolved, often a bit less, or roughly a 5-10% improvement in resolution, using electronic rather than mechanical shutter. BUT — this is pixel-peeping. I have to magnify image 200% to see this, toggle back and forth between electronic/mechanical and squint with eyes close to the 23” monitor. The difference is within the range of differences on one zoom lens tested at different focal lengths on the same camera, and less than what you often see between center and corner sharpness on most zoom lenses. IMO this “issue” is a tempest in a small teapot. Except perhaps for devotees of pixel-peeping, don’t lose sleep over this. I won’t.

I'll add to this (ran out of characters) that the difference is NOT like camera shake, which shows as a blurring of high-contrast edges. In my tests comparing electronic vs mechanical shutter, there is NO blurring -- just a roughly one-step (on that chart) difference in LPPM resolved. Across the board, no blurring. As I said, well within the range of differences I see among the lenses I own, or within the zoom range of any of my zoom lenses when tested.

Lenses used in my tests reported above were the newer Lumix 14-140 zoom, the kit zoom from the G7, and the Olympus 45mm f:1.8. Same results, all three lenses (tested at about 45mm focal length in all three cases). Ditto on the GX7.

BTW the kit lens is, in my tests, not great. Corners often sharper than centre, but had very soft and poor centre results wide-open at 25mm. Even my 14-140, never mind my wonderful Lumix 12-35mm f:2.8, can outperform the kit lens. Buy the camera body only, unless you don't have other 14-42 options.

Direct link | Posted on Jul 30, 2015 at 18:45 UTC
On Panasonic Lumix DMC-G7 Review preview (429 comments in total)

I tested both my new G7 and my GX7 with three lenses, using an Edmund Scientific Company Lens Resolving Power chart. Cameras set for shutter priority, on a tripod (OIS turned off) cycled through all shutter speeds at 1/3 increments 1/25 through 1/250, fired using 2-second self-timer.

Consistently I get maybe a one-step improvement in line pairs per mm resolved, often a bit less, or roughly a 5-10% improvement in resolution, using electronic rather than mechanical shutter. BUT — this is pixel-peeping. I have to magnify image 200% to see this, toggle back and forth between electronic/mechanical and squint with eyes close to the 23” monitor. The difference is within the range of differences on one zoom lens tested at different focal lengths on the same camera, and less than what you often see between center and corner sharpness on most zoom lenses. IMO this “issue” is a tempest in a small teapot. Except perhaps for devotees of pixel-peeping, don’t lose sleep over this. I won’t.

Direct link | Posted on Jul 30, 2015 at 18:38 UTC as 12th comment | 2 replies
On Panasonic Lumix DMC-G7 Review preview (429 comments in total)

... separate post due to character limitation:

I 100% agree with reviewer's favourable comment on the grip and how the camera fits in the hand. I held a G7 in the store and was immediately struck by how much more comfortably it fit in my hand compared with my GX7, G6, and G5 and as far as I can remember my previous Lumixes (GF1, GH1, GH2). I'm really looking forward to the arrival of my G7 order and putting it through its paces on my own series of technical and field tests.

Not everyone's hands are the same, but FWIW to anyone else, the grip is perfect for me.

Direct link | Posted on Jul 21, 2015 at 19:30 UTC as 14th comment
On Panasonic Lumix DMC-G7 Review preview (429 comments in total)

Very helpful review. One comment, on the Auto ISO implementation. All six previous Lumix ILCs I've owned have the same implementation. Doesn't bother me at all. I'm awaiting delivery of my G7 order, but on my previous Lumixes Auto ISO seems AFAICT to limit the shutter automatically to roughly the reciprocal of the full-frame-equivalent focal length in use, so e.g. with the kit lens at 42mm (84mm full-frame-equivalent) I'd expect to see shutter limits of either 1/80 or 1/100 on the metadata when the Auto ISO has kicked in (subject to the limits of the lens aperture and maximum ISO available). That seems to hold true whether or not the lens OIS is turned on (or on my GX7 whether in-body IS is turned on for a non-OIS lens) so this is a safe implementation IMO though overly conservative when OIS or IS is switched on. Better safe than sorry IMO so I'm happy with this, and it's one less setting to fiddle with when you change lenses. So AFAIC if G7 Auto ISO is the same, it's a plus IMO

Direct link | Posted on Jul 21, 2015 at 19:27 UTC as 15th comment
On The big beast: hands on with the Panasonic Lumix DMC-GX8 article (1231 comments in total)
In reply to:

Ed Overstreet: As someone who owns an GX7 (excellent camera IMO) and is about to buy a new G7, I'm a bit surprised (and disappointed) that the GX8 appears to have fewer customization options than either of the other two cameras. I can only see two programmable Fn buttons on the camera body (possibly a third sitting on one of the top-right dials), and I suspect from both the other cameras the "virtual button" set on the touch screen will only accommodate five more for a total of maybe 8. I find important uses for all the buttons (9 on the GX7 and 11 on the G7) as well as the Custom dial settings (five for the GX7 and three for the G7, not at all clear from the photos what is available on the GX8).

At the moment, once I have my G7 I doubt this GX8 is going to tempt me to upgrade from my GX7 (which I love and which will be a great backup/complement to my G7). The extra 4 megapixels isn't enough of an increase to interest me, and all the other features mentioned are available already in the GX7 or G7

... that's "any one else" not "atone else" fumble finger problem on the keyboard ...

Direct link | Posted on Jul 19, 2015 at 17:18 UTC
On The big beast: hands on with the Panasonic Lumix DMC-GX8 article (1231 comments in total)
In reply to:

Ed Overstreet: As someone who owns an GX7 (excellent camera IMO) and is about to buy a new G7, I'm a bit surprised (and disappointed) that the GX8 appears to have fewer customization options than either of the other two cameras. I can only see two programmable Fn buttons on the camera body (possibly a third sitting on one of the top-right dials), and I suspect from both the other cameras the "virtual button" set on the touch screen will only accommodate five more for a total of maybe 8. I find important uses for all the buttons (9 on the GX7 and 11 on the G7) as well as the Custom dial settings (five for the GX7 and three for the G7, not at all clear from the photos what is available on the GX8).

At the moment, once I have my G7 I doubt this GX8 is going to tempt me to upgrade from my GX7 (which I love and which will be a great backup/complement to my G7). The extra 4 megapixels isn't enough of an increase to interest me, and all the other features mentioned are available already in the GX7 or G7

@HowaboutRaw Yes in fact I have handled a G7, in the store before I ordered one. In my hands the G7 actually feels more comfortable than any previous Lumix I've owned and used extensively (GF1, GH1, GH2, G5, G6 and GX7). I appreciate that not everyone has the same hands, but since you asked, yes I've handled it and yes I prefer it to all the others. FWIW to atone else.

Direct link | Posted on Jul 19, 2015 at 16:30 UTC
On The big beast: hands on with the Panasonic Lumix DMC-GX8 article (1231 comments in total)

As someone who owns an GX7 (excellent camera IMO) and is about to buy a new G7, I'm a bit surprised (and disappointed) that the GX8 appears to have fewer customization options than either of the other two cameras. I can only see two programmable Fn buttons on the camera body (possibly a third sitting on one of the top-right dials), and I suspect from both the other cameras the "virtual button" set on the touch screen will only accommodate five more for a total of maybe 8. I find important uses for all the buttons (9 on the GX7 and 11 on the G7) as well as the Custom dial settings (five for the GX7 and three for the G7, not at all clear from the photos what is available on the GX8).

At the moment, once I have my G7 I doubt this GX8 is going to tempt me to upgrade from my GX7 (which I love and which will be a great backup/complement to my G7). The extra 4 megapixels isn't enough of an increase to interest me, and all the other features mentioned are available already in the GX7 or G7

Direct link | Posted on Jul 18, 2015 at 17:10 UTC as 61st comment | 6 replies
On Accessory Review: Kata Revolver-8 Backpack article (71 comments in total)
In reply to:

Joe Huckleberry: The waist strap doesn't look that good.

A tip for Kata and some other users:
I have and love one of your other bags, which also has a laptop slot in the back. I've also used a few Lowepro bags with that feature.
I almost never travel with a laptop (I use a Hyperdrive for storing photos until I get home; the way I work, I prefer to do my computing and home and do other things when I'm travelling and not photographing).

I always carry the bag with me on the aircraft, and in the laptop slot I insert one of those nifty Keyes packing aids that lets you fold and pack (relatively wrinkle-free) several shirts and maybe a pair of slacks. That way I have in my carry-on bag not only my photo gear but (with underwear and socks as padding in a few slots here and there) one or two complete changes of clothing with me. Having had certain airlines delay my checked luggage by up to three days on some overseas trips, I find it really good to have extra clothes with me on the aircraft.

Direct link | Posted on Nov 15, 2012 at 18:21 UTC
Total: 8, showing: 1 – 8