G5 possible problem

[gerson tessler]

Hello folks!

My friend and I recently bought a Canon G5 each one.

This morning, my friend report me a problem.

He told me that early in the morning (as he usually does) he positioned his G5 witha tripod in front of his window to take a picture. As he always does he set the camera to AUTO mode and set the zoom to 16x. Then hi notice something different, the image showed by the LCD was jagged. He told me that never happened before.

That was strange for me becouse it's a normal behavour on my G5 camera.

So the quastion is: My friend's camera is loosing quality and my camera is defective or my friend is just seeing getting "nuts"?

Another thing (maybe I'm getting nuts too!), in my last pictures I'm seeing a severe purple fringe. I'm saying this becouse in my first pictures I haven't notice such amount.

We must say that we really enjoy the G5 and hope that you folks, can help us to find a solution.

Thanks!

 

[Phil-B G5]

--
Phil
Lancashire, England
http://philb.fotopic.net/

 

[gerson tessler]

Dear Phil,

I will post pics with the purple fringe problem in few days.

But the our main concern is about the LCD view of a scene magnified 16x.

We don't know if it's normal the image to be presented jagged (seems that the image is not in focus) or it should be presented crystal and clear at this zoom factor.

It's important to say that after the the shot it's taken the picture appears in a perfect form.

--
Phil
Lancashire, England
http://philb.fotopic.net/

 

[Civis]

I think you might be expecting 16x optical + digital zoom to deliver what 16x optical zoom could (which it cannot).

I will post pics with the purple fringe problem in few days.

But the our main concern is about the LCD view of a scene magnified
16x.

We don't know if it's normal the image to be presented jagged
(seems that the image is not in focus) or it should be presented
crystal and clear at this zoom factor.

It's important to say that after the the shot it's taken the
picture appears in a perfect form.

--
Phil
Lancashire, England
http://philb.fotopic.net/

 

[gerson tessler]

Dear Civis,

Let me see if I understood.

I'ts NORMAL to see a somethig distorted image in the LCD when your're using a 16x zoom factor?

I will post pics with the purple fringe problem in few days.

But the our main concern is about the LCD view of a scene magnified
16x.

We don't know if it's normal the image to be presented jagged
(seems that the image is not in focus) or it should be presented
crystal and clear at this zoom factor.

It's important to say that after the the shot it's taken the
picture appears in a perfect form.

--
Phil
Lancashire, England
http://philb.fotopic.net/

 

[Phil-B G5]

Page 72 , turn off digital zoom. Use just optical zoom, 4 times, and everything should be ok.

If it is it is just the effect of digital zoom. Same as magnifying image in a photoeditor.

If you want to use it (page 72 and 41) then just be aware of what is happening.
--
Phil
Lancashire, England
http://philb.fotopic.net/

 

[gerson tessler]

Thanks for the advice.

Now I really beleive that my friend is REALLY SEEING THINGS!

I'll tell him!

Page 72 , turn off digital zoom. Use just optical zoom, 4 times,
and everything should be ok.
If it is it is just the effect of digital zoom. Same as magnifying
image in a photoeditor.

If you want to use it (page 72 and 41) then just be aware of what
is happening.
--
Phil
Lancashire, England
http://philb.fotopic.net/

 

[Elizabeth Klisiewicz]

I think a pixelated LCD is normal on any digicam whenever digital zoom is invoked. Certainly that's the way it works on my Nikon, and while I haven't seen it on my G3, I am sure it would be the case if I used the digital zoom.

As for purple fringing, Phil Askey commented on this problem in his detailed G5 review. Here are his words on the subject:
Purple Fringing (Chromatic Aberrations)

"We expected pretty much the same performance as the G3 (some purple fringing but not enough to be of real concern). However the G5 does appear to exhibit stronger fringing with a larger border and even at smaller apertures (where fringing typically disappears). Could this be because of the tighter pitch of the microlenses on the CCD? (pure speculation). As you can see from the samples below while fringing is reduced at higher apertures it is still visible. For me this level of fringing isn't really acceptable in a modern digital camera."

If you go to http://www.dpreview.com/reviews/canong5/page13.asp and scroll down to Purple Fringing, you can see some samples.

HTH,

Elizabeth K.

 

[gerson tessler]

Dear Elizabeth,

Thanks for your help.

I already told to my friend that he maybe get a bit confused for what he thinks he saw.

He told me that he is not wrong and that he'll make some tests.

I sad OK, because in opposit to me he is very expirienced with film cams including Rolleiflex type ones.

But I'll send your appointments to him.

In fact what you wrote is the behaivour of my G5 since I've bought it.

In general I'm really satisfied with that camera.

soon I'll post my pictures at pbase.

I'll send the link to this community.

Thanks for All!

bye

I think a pixelated LCD is normal on any digicam whenever digital
zoom is invoked. Certainly that's the way it works on my Nikon, and
while I haven't seen it on my G3, I am sure it would be the case if
I used the digital zoom.

As for purple fringing, Phil Askey commented on this problem in his
detailed G5 review. Here are his words on the subject:
Purple Fringing (Chromatic Aberrations)

"We expected pretty much the same performance as the G3 (some
purple fringing but not enough to be of real concern). However the
G5 does appear to exhibit stronger fringing with a larger border
and even at smaller apertures (where fringing typically
disappears). Could this be because of the tighter pitch of the
microlenses on the CCD? (pure speculation). As you can see from the
samples below while fringing is reduced at higher apertures it is
still visible. For me this level of fringing isn't really
acceptable in a modern digital camera."

If you go to http://www.dpreview.com/reviews/canong5/page13.asp and
scroll down to Purple Fringing, you can see some samples.

HTH,

Elizabeth K.