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Luminous Landscape Forum > Equipment & Techniques > Medium Format Digital Backs and Photography
Snook
Got alot of this the other day and acutally not one picture was "sharp" like my P30.
I thought it was the RZ maybe but then I did some on the AFDII and they were about the same.
Any thoughts?
I use to get something similar with my canon when people were moving and my flash was not a short duration flash so there was some slight blurring?
Shot was shot tripod studio profoto 7A 2400
65mm lens 250/th at f11
Click to view attachmentClick to view attachment
VanKou
it looks like out of focus?

QUOTE (Snook @ Jul 19 2008, 06:06 PM)
Got alot of this the other day and acutally not one picture was "sharp" like my P30.
I thought it was the RZ maybe but then I did some on the AFDII and they were about the same.
Any thoughts?
I use to get something similar with my canon when people were moving and my flash was not a short duration flash so there was some slight blurring?
Shot was shot tripod studio profoto 7A 2400
65mm lens 250/th at f11
Click to view attachmentClick to view attachment
*
mcrepsej
Hi.

You have to use a cabel release on the lens.
Best choice if you have the double cabel release from Mamiya.
Then you will get sharp closeups.

Iversen
Denmark
Snook
QUOTE (mcrepsej @ Jul 19 2008, 07:57 PM)
Hi.

You have to use a cabel release on the lens.
Best choice if you have the double cabel release from Mamiya.
Then you will get sharp closeups.

Iversen
Denmark
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Dude those are from full length shots..those are 100% crops...
Not beauty stuff at all..
Snook
TMARK
I think the sensor is out of alignment, which is probably why its a dealer loaner.

My first P30+ was sharper than my new P30+, only slightly but sharper nonetheless.
PatrikR
QUOTE (Snook @ Jul 20 2008, 01:06 AM)
Got alot of this the other day and acutally not one picture was "sharp" like my P30.
I thought it was the RZ maybe but then I did some on the AFDII and they were about the same.
Any thoughts?
I use to get something similar with my canon when people were moving and my flash was not a short duration flash so there was some slight blurring?
Shot was shot tripod studio profoto 7A 2400
65mm lens 250/th at f11Click to view attachmentClick to view attachment
*

My P45 is sharp. I think you have some serious issues with the camera. I'd take it back because it's ruining your shoots.

This is from a full lengths shot at f5.0 with my H1/P45+.
stevephoto
perhaps try a focus test on an object and try a focus range from a couple of feet in front to behind - see if that gives a clue
juicy
Looks like front focus. You should probably make a focusing test with a long ruler at an angle and see where the focus really is and rule out possible reasons one variable at time.

Cheers,
J
John Schweikert
I think it's fair to say it has nothing to do with the lens and focusing, he's shooting at f11 for a full length shot, so everything should be crisp. I think the sensor is simply not at the true film plane. Maybe the sensor is misaligned inside the back from manufacturing or some other cause. Thankfully, it's not your permanent back.
foto-z
QUOTE (juicy @ Jul 20 2008, 10:18 AM)
Looks like front focus. You should probably make a focusing test with a long ruler at an angle and see where the focus really is and rule out possible reasons one variable at time.

Cheers,
J
*


Agreed, or even a wall with some texture shot at a 45 degree angle.
John Schweikert
Apparently I'm the only one who pays attention to what Snook shoots and what he has said. He has shot a P30 on his RZ for a good while with no fuzzy shots. That back is in for repair. He has removed his P30 and is using a temporary P45 in the exact same setup. It seems quite obvious the P45 is the weak link here. I think the sensor is not where is should be inside the back. Maybe why it was set aside as a temp back or who knows why.
Snook
QUOTE (John Schweikert @ Jul 20 2008, 09:53 AM)
Apparently I'm the only one who pays attention to what Snook shoots and what he has said. He has shot a P30 on his RZ for a good while with no fuzzy shots. That back is in for repair.  He has removed his P30 and is using a temporary P45 in the exact same setup. It seems quite obvious the P45 is the weak link here, not back focusing.
*

Thanks for all the ideas.
I also think it is the Back for some reason. Also , as I mentioned, I did connect it to a AFDII and had the same results. So Do not think it is the back.

I always thought , but could be wrong, that if I was shooting at full length and was at F11 on MF
you would think a lot would be in focus..?
It is not the focus I think as there is nothing in focus on many shots...
it all seems some how soft.
Like I said I used to get that with my canons but when there was a lot of movement and my Acutes could not freeze as their flash duration stinks! Whether or not a studio is blacked out or not...:+}
I noticed also that the P45 they loaned me is a non + and has a little triangle in the upper right side of the lcd, on the glass, that my p30 did not have.
Do the P45 have a little triangle on the glass of the LCD? just another odd question and something I noticed.

Also like I mentioned there are no shots that are as sharp as my P30.

Thanks again for the suggestions!
Snook
Mort54
QUOTE (Snook @ Jul 20 2008, 10:03 AM)
I noticed also that the P45 they loaned me is a non + and has a little triangle in the upper right side of the lcd, on the glass, that my p30 did not have.

Hi Snook. Regarding the triangle, if it's what I think it is, it's the pull tab of a clear, peel-off, LCD protector. My P45+ has one on the upper left corner, when looking at the screen.

Regarding the softness you are seeing, I agree, that's pretty bad. And given that you've seen this on two different bodies - one of which you are very familiar with and have had no focus problems with in the past - I also agree it almost certainly has to be a back or sensor alignment issue.

Given the higher pixel count of the P45, when you zoom to 100%, you are in effect zooming in more than you are when you view your P30 files at 100%. So shots that might look OK when taken with a lower resolution back might not look as good when shot with a higher resolution back, simply because the higher effective zoom reveals more vibration effects, lens deficiencies, etc. But even so, the shot you showed is clearly soft looking even before you get to 100%. My P45+ captures are so sharp that I rarely apply any sharpening, so clearly the back is capable of capturing sharp images.
juicy
QUOTE (John Schweikert @ Jul 20 2008, 09:53 AM)
Apparently I'm the only one who pays attention to what Snook shoots and what he has said. He has shot a P30 on his RZ for a good while with no fuzzy shots. That back is in for repair.  He has removed his P30 and is using a temporary P45 in the exact same setup. It seems quite obvious the P45 is the weak link here. I think the sensor is not where is should be inside the back. Maybe why it was set aside as a temp back or who knows why.
*


I thought that with a simple focus test it would be easy to see if there is anything sharp at all and if yes then how much the focus is off (if the sensor is farther away from the filmplane than it should it will cause front focusing like an extension tube). If nothing at all is in focus in a test Graham suggested then something else is the reason for fuzzyness (maybe there's a peel-off sensor protector also tongue.gif ). And to make it completely clear I do not suggest there is something wrong with the focusing technique or lenses or viewfinder.

Cheers,
J
HarperPhotos
Hi Snook,

Have you tried the P45+ on your Mamyia 645AFDII ?

Cheers

Simon
Snook
QUOTE (HarperPhotos @ Jul 20 2008, 06:52 PM)
Hi Snook,

Have you tried the P45+ on your Mamyia 645AFDII ?

Cheers

Simon
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I do not have the +.. I was using the P45...
I have a P30 that is dying and they loaned me a P45
Snook
Natasa Stojsic
QUOTE (Snook @ Jul 20 2008, 09:03 PM)
I do not have the +.. I was using the P45...
I have a P30 that is dying and they loaned me a P45
Snook
*


OK!!! Regardless of P45/P45+, did you try it with your Mamyia 645AFDII? and if you did,
please post some raw images!!!
SecondFocus
I can only say that I shot a P45+ on my Mamiya 645AFDII and it could not have been any sharper.
John Schweikert
QUOTE (Natasa Stojsic @ Jul 20 2008, 09:33 PM)
OK!!! Regardless of P45/P45+, did you try it with your Mamyia 645AFDII?  and if you did,
please post some raw images!!!
*


To help Snook out here. It's like everyone is talking on opposite sides of sound proof glass.

His first post: "but then I did some on the AFDII and they were about the same."
Mort54
QUOTE (John Schweikert @ Jul 21 2008, 08:56 AM)
It's like everyone is talking on opposite sides of sound proof glass.

I agree; it's bizarre. It's as if people are only reading Snook's thread title and nothing more.
Snook
QUOTE (Mort54 @ Jul 21 2008, 09:10 AM)
I agree; it's bizarre. It's as if people are only reading Snook's thread title and nothing more.
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Thanks guys for standing up..:+]
I think that 1/2 the arguments that happen on these and other threads is b/c people do not read through the whole thread!!!
Yes I tried it on my AFDII and had the same results!!
I also have to agree it looks like a little OOF, but it is not as there is nothing in focus in the shot...:+}
I am not miss focusing by meters...:+}
Also it looks more like movement blur than oof to me..
Thanks for all the suggestions
Snook
Khun_K
The image looked to me is sharper around the lip but less on the rest of image so may be the focus was setting in front of the model? I think the hair line suggest there is little motion blue on this capture and what is the file size you generate? The close up image exhibits lots of sharpening. I am using P45+ on Contax 645, I got constant sharp image, especially from the Apo-Makro Plannar 120/4, even with manual focus. Picture taken with P45+, ISO 50, Contax 645 with Apo-Makro-Planar 120/4 at f/16, 1/60s.
juicy
QUOTE (Snook @ Jul 21 2008, 09:14 AM)
Thanks guys for standing up..:+]
I think that 1/2 the arguments that happen on these and other threads is b/c people do not read through the whole thread!!!
Yes I tried it on my AFDII and had the same results!!
I also have to agree it looks like a little OOF, but it is not as there is nothing in focus in the shot...:+}
I am not miss focusing by meters...:+}
Also it looks more like movement blur than oof to me..
Thanks for all the suggestions
Snook
*



No-one said YOU are miss focusing. You already know it's neither the lenses nor the body.
Doing a simple test to see if it's about sensor miss alignment (because someone parked a car on it) or something else is of course a time consuming task of about 180 seconds.

If the sensor is 1/3 mm behind the filmplane then with a 65mm lens focused to about 5 meters the focus might be a half a meter off.

Cheers,
J
Snook
QUOTE (juicy @ Jul 21 2008, 10:02 AM)
No-one said YOU are miss focusing. You already know it's neither the lenses nor the body.
Doing a simple test to see if it's about sensor miss alignment (because someone parked a car on it) or something else is of course a time consuming task of about 180 seconds.

If the sensor is 1/3 mm behind the filmplane then with a 65mm lens focused to about 5 meters the focus might be a half a meter off.

Cheers,
J
*

Hey Juicy I will..
Just the P45 is a loaner for a couple of days..
I will try it if they loan it to me again..:+]
Very funny about the Parked car demo...:+]
I always wonder who the unlucky photographer was that got that back in a re- furb deal...hahaha
Glad you added humor to the topic.
Just talked to my dealer here and will be sending it back to Phase for me (my P30) and we'll see how that goes.
I am sure fine.
I am actually thinking about just keeping the P30 and Buying a P30+ to have both. The P30 for back up.
Snook

PS. Juicy that looks about normal for a chest up portrait.. mine was from a full length with plenty of space above and below her with white from studio.

Also like the catchlight in your beauty.. is it a Briese ParaB?
Thanks blink.gif
Natasa Stojsic
QUOTE (John Schweikert @ Jul 21 2008, 08:56 AM)
To help Snook out here. It's like everyone is talking on opposite sides of sound proof glass.

His first post: "but then I did some on the AFDII and they were about the same."
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John, have you seen some/the same examples done by P45/AFDII, if not..... you re shifting this into argument and that is obviously 0% productive!!!

On the other hand Simon/Harpers Photo is respected and great photographer, he asked the same question and I assume he was expecting/looking for some samples with P45/AFDII (like we've seen with P45/RZ) now obviously that's not the crime!!! Simon read the thread like the rest of us.... only he didn't get the answer and therefore I asked again.... perhaps some of us read the whole thread too closely tongue.gif

When James, Simon and all other great photographers here ask the question I don't believe it should be overlooked or turned in to argument.... these guys could have few angles/views that some of us don't and I don't mean because we are exhausted biggrin.gif

P☮e☮a☮c☮e!!!
Snook
QUOTE (Natasa Stojsic @ Jul 21 2008, 11:34 AM)
John, have you seen some/the same examples done by P45/AFDII, if not..... you re shifting this into argument and that is obviously 0% productive!!!

On the other hand Simon/Harpers Photo is respected and great photographer, he asked the same question and I assume he was expecting/looking for some samples with P45/AFDII (like we've seen with P45/RZ) now obviously that's not the crime!!! Simon read the thread like the rest of us.... only he didn't get the answer and therefore I asked again.... perhaps some of us read the whole thread too closely tongue.gif

When James, Simon and all other great photographers here ask the question I don't believe it should be overlooked or turned in to argument.... these guys could have few angles/views that some of us don't and I don't mean because we are exhausted biggrin.gif

P☮e☮a☮c☮e!!!
*

I hope no-body argues..:+]
I posted this to see if anybody had seen this before. I am not in my studio until thursday maybe.. then I could up the same from the AFDII.
In any case as I stated they are the exact same and I don't think anybody has to doubt my word as it is my post...:+]
I was not posting to bash the P45 or anything.. Just wanted some input.
The back in question is the loaner,not mine so I am nothing going to stress about it.
I told the Rep here what I observed with it and that's it.. If he offers it as a Loaner again I might not take it.. No big deal..:+}

I am sure John was stating that I had already posted that I did try it on my AFDII.. The post raw images was another request..
SO they both be right...

Thanks guys and please by all means do not argue.. Not worth it..:+]
Snook
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