Can you rent one?
Chuck Norcutt
Michael Wong wrote:
> Chuck,
> I readlly do not know the reason. Anyway, I hope I can find a good option of
> 612 film back. I have asked a shop that a new Horseman 612 filmback will be
> over HK$5,000 .......... 612 is not my major shots, HK$5,000 is very
> expensive :(
>
>
> ---
> Michael
>
>
>
> On 21 August 2010 19:43, Chuck Norcutt <chucknorcutt@xxxxxxxxxxxxxxxx>wrote:
>
>> I would assert that the only way your film back can cause a problem is
>> to leak light. I didn't see anything that looked to me like a light leak.
>>
>> Chuck Norcutt
>>
>>
>> Michael Wong wrote:
>>> The procedure is same as to take 4x5 shots except put different film back
>> on
>>> my machine. After the shot of 612, I put the dark slide into film back
>> and
>>> rotate the knob for film advance & then put my 612 film back away from my
>>> machine. I do similar procedure for my 4x5 shots but no problem at all.
>>> Moreover, I took both 4x5 shots & 612 shots that day but 4x5 shots are no
>>> problem.
>>>
>>> I do not think my procedure, my machine, my lens has error to cause the
>>> color shifting error since the problem didn't appear on 4x5 shots. Is it
>>> film problem? Development error? Or film back problem?
>>>
>>>
>>> ---
>>> Michael
>>>
>>>
>>>
>>> On 21 August 2010 03:30, Jeff Keller <om-list@xxxxxxxxxxx> wrote:
>>>
>>>> Yes, it also looks to me that the images he posted had the problem
>>>> "centered" on two adjacent images. He said it was a recurring problem
>> but
>>>> if
>>>> it ALWAYS shows up on adjacent frames, it would seem someone is much
>> more
>>>> consistent in what they are doing than I would expect.
>>>>
>>>> The film back has a darkslide which must be pulled out to expose the
>> film.
>>>> Typically the Chinese made backs use a knob to advance the film until
>> the
>>>> next exposure number printed on the back of the film appears in a small
>> red
>>>> window on the film back. If the dark slide were pulled out when the film
>>>> was
>>>> half advanced it would be possible to partially expose two adjacent
>> frames.
>>>> He said that he had color shifts constantly (but maybe not in the same
>>>> locations). It's hard to imagine any kind of strictly operator error
>> that
>>>> would cause it. If his equipment was faulty, maybe his standard
>> procedure
>>>> causes the problem to recur.
>>>>
>>>> Jeff
>>>>
>>>> -----Original Message-----
>>>> From: Chuck Norcutt [mailto:chucknorcutt@xxxxxxxxxxxxxxxx]
>>>> Sent: Friday, August 20, 2010 7:34 AM
>>>> To: Olympus Camera Discussion
>>>> Subject: Re: [OM] 612 film back advice is needed.
>>>>
>>>> I have no idea how roll film is commercially developed. I was
>>>> hypothesizing the roll being drawn through the chemicals and getting
>>>> stuck in one place too long. Totally in my head and without any facts
>>>> to support me. Regardless, some sort of processing error seems much
>>>> more real to me than two adjacent images sharing a common defect that is
>>>> visible only on about 1/3 of each image and those areas being adjacent
>>>> to each other. What in the camera causes a flaw to appear on the right
>>>> third of an image and in the next frame to appear on the left side?
>>>>
>>>> So far no one has even commented that they see this adjacent image
>>>> problem. Am I imagining it?
>>>>
>>>> Chuck Norcutt
>>>>
>>>>
>>>> Bill Pearce wrote:
>>>>> Those sorts of flaws, where it's not consistently across the entire
>> roll,
>>>>> are rarely a processing error. Color shifts in the image from side to
>>>> side?
>>>>> How can that be a processing error. The only thing I've ever seen in
>>>> years
>>>>> of processing would be a light strike in a machine, but those are very
>>>> very
>>>>> rare these days, unless you are having film processed at a drugstore or
>>>>> somewhere like that.
>>>>>
>>>>> Bill Pearce
>>>>>
>>>>> -----Original Message-----
>>>>> From: Chuck Norcutt [mailto:chucknorcutt@xxxxxxxxxxxxxxxx]
>>>>> Sent: Friday, August 20, 2010 7:29 AM
>>>>> To: Olympus Camera Discussion
>>>>> Subject: Re: [OM] 612 film back advice is needed.
>>>>>
>>>>> I haven't seen anyone comment yet on my diagnosis of a film processing
>>>>> error. The was predicated on two successive and supposedly adjacent
>>>> images
>>>>> showing the same failure... one on the right side and the other on the
>>>> left.
>>>>> The implication is that, whatever the cause, it crossed over two
>> adjacent
>>>>> images. If it happened in-camera it would seem that the film would
>> have
>>>> had
>>>>> to be advanced a half frame and allowed to sit there for a while. But
>>>> since
>>>>> there's a color defect involved all I can suppose is processing.
>>>>>
>>>>> Chuck Norcutt
>>>>>
>>>>>
>>>>> Brian Swale wrote:
>>>>>> I've missed a couple of digests so may be behind in ideas on this
>> topic.
>>>>>> But it occurred to me that after the first shot on a new roll of film,
>>>>>> the 6 x 12 back could be removed, rotated 180 degrees, and used for
>> the
>>>>> second shot.
>>>>>> Take note of which end was where on the body, each time.
>>>>>>
>>>>>> Do that for all images and see what pattern (if any) of colour defect
>>>>>> shows up.
>>>>>>
>>>>>> Brian Swale.
>>>> --
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>>>>
>> --
>> _________________________________________________________________
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>>
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