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Dimage 7i vs. G2

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Jens Jakob

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Hi

The new Dimage 7i looks really great. Still, if they havent added compression to the RAW files, the RAW files of the DImage is 10 meg vs. 3.3 of the G2. H mmmm, aurgh "() #() "# )(" #()

JJ
 
Has only 3 point AF.
Good AF requires atleast 5 points.
I remember reading on Compuserve's Canon Forums (1995) about a user
complaining he couldn't get a pic of a flying crane using an F4S (Nikon).
There was a lot of debate on autofocus and a lot of Nikon users admitted
that Canon's AF was the best on Canon's SLR's 1n and 1nRS. The 1V had
not yet come out.
The general opinion was a 5 point AF system is the minimum required
to get good AF.

Sunil G.
 
How many AF points hos G2?
Sunil said:
Has only 3 point AF.
Good AF requires atleast 5 points.
I remember reading on Compuserve's Canon Forums (1995) about a user
complaining he couldn't get a pic of a flying crane using an F4S
(Nikon).
There was a lot of debate on autofocus and a lot of Nikon users
admitted
that Canon's AF was the best on Canon's SLR's 1n and 1nRS. The 1V had
not yet come out.
The general opinion was a 5 point AF system is the minimum required
to get good AF.

Sunil G.
Click to expand...
 
That is just plain silly, 3 point af works just fine. most point and shoot cameras only have one. as for the raw size, it is a 5.24mp camera vs a 4mp camera. Also you will lose quality with file compression.
Tim
Jens Jakob said:
Sunil said:
Has only 3 point AF.
Good AF requires atleast 5 points.
I remember reading on Compuserve's Canon Forums (1995) about a user
complaining he couldn't get a pic of a flying crane using an F4S
(Nikon).
There was a lot of debate on autofocus and a lot of Nikon users
admitted
that Canon's AF was the best on Canon's SLR's 1n and 1nRS. The 1V had
not yet come out.
The general opinion was a 5 point AF system is the minimum required
to get good AF.

Sunil G.
Click to expand...
Click to expand...
--Download free photoshop plugins/actions at http://www.image1studio.com in our webstore!
 
dale said:
That is just plain silly, 3 point af works just fine. most point
and shoot cameras only have one. as for the raw size, it is a
5.24mp camera vs a 4mp camera.
Click to expand...
The Minolta D7's raw file is about 9.4 meg as compared to the G2's approx 3. This is a signifigant difference which means the G2 takes much less time to write the image to the CF and does not tie up the camera nearly as long when shooting in RAW mode.
dale84307 said:
Also you will lose quality with file compression.
Tim
Click to expand...
Not true of all file compression. Canon's RAW format, for example, is lossless. All the image data is restored when uncompressed.

crl
 
They did not replace the lens so what is the big deal. You can still get better photos with a G1 and B-300 than the D7 as it just dose not resolve the same number of lines. What good are 5-MP of blurry detail?

Morris
Jens Jakob said:
Hi

The new Dimage 7i looks really great. Still, if they havent added
compression to the RAW files, the RAW files of the DImage is 10 meg
vs. 3.3 of the G2. H mmmm, aurgh "() #() "# )(" #()

JJ
Click to expand...
 
I own a large photography studio and we do our own printing on $250k Noritsu labs and every day the d7 amazes me. I normally use medium format cameras in the studio. To be honest I purchased it (D7) for passports and copywork but after I made a few 11x14 prints on it from my noritsu it amazed me. What amazed me more than anything was the color accuracy and tha sharpness of the lens. Hey the g2, s1 6900 and many other cameras are nice and I have people in my store every day having prints made from these cameras but I have yet to see one match the quality of the D7 prints. Yes I know the high end digital slrs would beat it but look how much they cost. Most of the online reviewers are not professional photographers and I believe it takes a professional photographer to review a camera accurately not a computer whiz!
Tim
The d7 has a very very sharp lens.
morris said:
Morris
Jens Jakob said:
Hi

The new Dimage 7i looks really great. Still, if they havent added
compression to the RAW files, the RAW files of the DImage is 10 meg
vs. 3.3 of the G2. H mmmm, aurgh "() #() "# )(" #()

JJ
Click to expand...
Click to expand...
--Download free photoshop plugins/actions at http://www.image1studio.com in our webstore!
 
Dale,

If you move outside the studio, how easy is it to get the same quality
as in-studio using the D7 ?
Places like malls, outdoors, indoors at parties / functions, zoos / parks
etc...
Since you have a studio and professional developing equipment, your
opinion is appreciated.

Thank You,

Sunil G.
dale said:
I own a large photography studio and we do our own printing on
$250k Noritsu labs and every day the d7 amazes me. I normally use
medium format cameras in the studio. To be honest I purchased it
Click to expand...
 
Its very easy. I will be posting some snapshots taken in Huntington, WV this past weekend soon. I used iso from 100 to 800. I am bad about not posting new photos on my website! I only have a few posted taken with the d7 and that was the day I received it. Please do not be offended by my posts. I do like the g2, my friend has one and my uncle does also but I feel that the D7 is better for what I use it for.
Tim
Sunil said:
If you move outside the studio, how easy is it to get the same quality
as in-studio using the D7 ?
Places like malls, outdoors, indoors at parties / functions, zoos
/ parks
etc...
Since you have a studio and professional developing equipment, your
opinion is appreciated.

Thank You,

Sunil G.
dale said:
I own a large photography studio and we do our own printing on
$250k Noritsu labs and every day the d7 amazes me. I normally use
medium format cameras in the studio. To be honest I purchased it
Click to expand...
Click to expand...
--Download free photoshop plugins/actions at http://www.image1studio.com in our webstore!
 
How different is the D7i from the D7? I just took a peak at the "Comparometer" over at Imaging Resource: http://www.imaging-resource.com/IMCOMP/COMPS01.HTM and I wasn't impressed with how the D7 compared to the G2. The G2 seemed to win out on sharpness, colour accuracy, noise, etc.

Michael

Perhaps mine eyes deceive me since I own a G2, but I couldn't find any advantages the D7 had in terms of image quality.
Sunil said:
If you move outside the studio, how easy is it to get the same quality
as in-studio using the D7 ?
Places like malls, outdoors, indoors at parties / functions, zoos
/ parks
etc...
Since you have a studio and professional developing equipment, your
opinion is appreciated.

Thank You,

Sunil G.
dale said:
I own a large photography studio and we do our own printing on
$250k Noritsu labs and every day the d7 amazes me. I normally use
medium format cameras in the studio. To be honest I purchased it
Click to expand...
Click to expand...
 
Ok from the resolution chart samples on dpreview.com you can see that the D7 can resolve 13 to 14 LPI while the G2 can resolve 14 to 15 LPI. End of discussion on lens quality!

Morris

PS. The samples, check them out if you have broad band:

D7: http://www.dpreview.com/reviews/orig.asp?/reviews/samples/rescharts/minolta_dimage7.jpg

G2: http://www.dpreview.com/reviews/canong2/Samples/DiagonalArtifacts/pt2/rawlinear.jpg
dale said:
morris said:
Morris
Jens Jakob said:
Hi

The new Dimage 7i looks really great. Still, if they havent added
compression to the RAW files, the RAW files of the DImage is 10 meg
vs. 3.3 of the G2. H mmmm, aurgh "() #() "# )(" #()

JJ
Click to expand...
Click to expand...
--
Download free photoshop plugins/actions at
http://www.image1studio.com in our webstore!
Click to expand...
 
Hi Morris

I like the softness and clearness of the D7 better...

JJ
morris said:
Morris

PS. The samples, check them out if you have broad band:

D7:

http://www.dpreview.com/reviews/orig.asp?/reviews/samples/rescharts/minolta_dimage7.jpg

G2:

http://www.dpreview.com/reviews/canong2/Samples/DiagonalArtifacts/pt2/rawlinear.jpg
dale said:
morris said:
Morris
Jens Jakob said:
Hi

The new Dimage 7i looks really great. Still, if they havent added
compression to the RAW files, the RAW files of the DImage is 10 meg
vs. 3.3 of the G2. H mmmm, aurgh "() #() "# )(" #()

JJ
Click to expand...
Click to expand...
--
Download free photoshop plugins/actions at
http://www.image1studio.com in our webstore!
Click to expand...
Click to expand...
 
Martin Eager said:
Jens Jakob said:
How many AF points hos G2?
Click to expand...
It uses a different system with a contrast-based focus zone.

Martin
Click to expand...
To amplify Martin's point, SLRs use phase detection autofocus which is more accurate and reliable than contrast-detection autofocus used in non-SLR digicams. As far as SLR autofocus systems go, Minolta's is one of the better ones and it's a shame they haven't yet produced a D-SLR.

Earlier in the thread another poster said 5 point AF is better than 3 point in SLRs. Of course more sensors can help, but what matters more is the orientation of the sensors. Some SLR systems have used AF sensors that are only sensitive to vertical lines. Others also include sensors that are rotated by 45 degrees, so they are sensitive to both vertical and horizontal lines. The program/algorithm that determines which sensor to believe also plays a big role in the accuracy and usability of the AF system.

Both the Minolta D7 and the Canon G2 operate on contrast detection, which is not as accurate as phase detection. Both have 3 zones, the difference is that the D7 autoselects, whereas the G2 has a manual selection. I believe both the D7 and G2 are sensitive mainly to vertical lines.

I also recall reading complaints about the Minolta D7 autofocus hunting (Phil says "infuriating" AF delays). Other reviews said it sometimes indicates false focus locks, especially in low light.

Here is what we know so far about the D7i: the AF has been improved so that AF speeds are about twice as fast. We can also assume that it is still contrast-based since they didn't say otherwise. They've added a flex point control for selecting AF area, and the option of fine tuning focus manually. However, they don't say anything about improving the resolution of the EVF, which is used for manual focus. It's clear that Minolta are trying to fix some of the major complaints about the D7, but we'll have to see how well they succeeded. It's doubtful they were able to address the other big complaint (short battery life), because of the EVF - they still have two LCDs to feed. GKL
 
Dale is right. I don't know where the myth that the D7 lens is inferior came from. It is a larger zoom range 7X (28-200 m equiv) than the 3X (34-102 mm equiv) of the G2, so you wouldn't expect it to be quite as sharp. Yet Phil's review is very favourable - chromatic aberrations are very well-controlled for this zoom range. He also says it gives roughly the same resolution as the Sony DSC-S85, and guess who made that lens?(Its the same as the G2.) I doubt the Oly B300 attached to the G2 lens can beat the D7 lens.

There is no question that Minolta makes great lenses, just like Nikon and Canon. GKL
dale said:
morris said:
Morris
Jens Jakob said:
Hi

The new Dimage 7i looks really great. Still, if they havent added
compression to the RAW files, the RAW files of the DImage is 10 meg
vs. 3.3 of the G2. H mmmm, aurgh "() #() "# )(" #()

JJ
Click to expand...
Click to expand...
--
Download free photoshop plugins/actions at
http://www.image1studio.com in our webstore!
Click to expand...
 
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