jerry2
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Posts posted by jerry2
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I have the Harrison pop up tent. I have not use other tents... I
think the tent is just fair. There must be better designed units out
there. What really bothers me is how the unit holds the support
sticks, the material tabs can rip quite easily...and have already...
too much precision required to get it right. I think I have seen
some which just spring into place when taken out of their bag, this
would seem desireable to me after my experience with the Harrison.
Also, I would want a tent with more room in it... you can never have
enough room in these things!
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Thanks for the correction Kevin, I knew when I was typing Goldfield
it did not sound right!
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I agree, Goldfield, by Jean NV South of Vegas about 25 miles off I15,
does have some serious distressed looking streets. But don't be
fooled lots there can sell for $100k. Great old saloon still
standing.
But a real gem that most people overlook in Vegas is the Old
Moulon Rouge Casino, active from the 50's to early 70's. It was
still in the days of race discriminations against blacks.... even
Sammy Davis jr. was forced to stay there when performing in the big
casinos. It has been abandoned and certainly looks distressed...
they have been trying to get funds to revive it, as it should be a
historic building... very unique and screams early 1950's. It is
located west off 15 North by the Las Vegas Review Jornal building and
a huge furniture store...(both highly visible to your left on I15
North, just before the spaghetti bowl, (a massisve intersection of
interstates such as 15, 95 and 93) if you could look to your right
while traveling 15 South, you can see the Moulin Rouge, but don't try
it, you may crack your car up. I forgot the street name, but you can
easily find out once you get close... the Casino now has a fence at
the sidewalk with a guarded gate, but I am sure they will let you
inside the fence to photograph.
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At f22, no movements, my 110 SSXL will cover 8x10, of course ND
center filter absolutely mandatory!
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Bill, I use a Toyo 810MII field. I have not experienced all of the
other field cameras, but my guess is, the Toyo is the ultimate tank.
Very solid, very precise. Drawbacks are, very clumsy, no easy way to
hold it, only geared focus, very heavy at 15 lbs with nothing on it,
not backback friendly at all. If backpacking this camera great
distances is your goal, I would strongly not reccomend the Toyo, but
if you are shooting close to the car, or use a cart to haul the
camera to the scene, then its a solid camera. I am quite surprised
at the low weight of some of the new 810's, but I suspect you pay in
rigidity. There is no free lunch at this format size, unless someone
makes a titanium one. From what I have read on this list, Ebony
users claim excellent stability with moderate weight.....
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Which Kodak digital back? Are you prepared to do a head to head
comparison with film and drum scan? From what I have ascertained,
Kodaks best back still can't match 4x5 film but comes very close...
would you agree with this?
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Jeff, a while back, there was seperate posts on the both the digitar
80 and the SS XL 80. The Digitar got rave revues, awesome
resolution, and the SSXL turned out to be the weak link in the SSXL
line of lenses. I would go research this in the archives and you
will be enlightened.
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You wrote.... Digitar's 90mm at f/11 is not quite enough, especially
as I frequently focus much closer than at infinity.
<p>
Keep in mind these image circles are usually conservative.
If you shoot closer than infinity, this will increase the image
circle as the lens is further from the film, or maybe I am not sure
what you are getting at here? or maybe just a typo?
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Dave, you wrote......, so then the stretch or compression of short
and long lenses is entirely relative to the format and not the focal
length of the lens?
<p>
Better said, film format defines what lens is long or short as
I described above. To alter the amount of stretch or compression
from one image to another, you need to alter the camera vs. subject
distance.
Neil wrote.....I'm with Conrad on this one. The sense
of "compression" is dependent upon perspective, which is dependent
only upon the position of the camera.
<p>
I agree with you and Conrad, but to answer Davids original
question, we assumed both hypothetical images were taken in the same
spot. His question was about the difference in the final photograph
when using a 35mm with normal lens vs. an 810 camera with normal
lens, shooting from the same position. He felt the final images
would be noticeably different. But in reality they would be near
identical. (putting aside, DOF, aspect ratio, movements, etc.)
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David, here is a better way to think of it... your description of
compression for long lenses and stretch (or exagerated) for near
objects with wide angle lenses is very accurate! The question is,
what is normal, what is wide and what is long? The answer to that
question is dependent on the film formats diaganol.... a normal lens
equals the diaganol of the format, a longer lens is greater than the
diaganol, etc. So you have the right idea, you just have to change
the middle point (normal lens) for each format.
<p>
If you take the diaganol of 35mm, 6x7, 4x5, 8x10 and use a
lens for each format exactly equal to their diaganol, you will get
the identical image, on each piece of film, (correcting for aspect
ratio a tad) If you use a lens for each format that is 6x the
diaganol, you still will get the identical image on each peice of
film. Does this make sense?
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Dave, I think you are confusing yourself here.... Lets take your
example.... you set up tripods side by side. You shoot 35mm camera
with 50mm lens and 810 camera with 300mm lens. Assuming the aspect
ratio of the 35mm is the same as 8x10, then both images would have
the exact same image within its borders, no differences.
<p>
Now, if you shoot 35mm with a 600mm lens, and 810 with a 600mm
lens on it, and you crop the 810 film down to 35mm size, (or use a
35mm back) you once again will have the identical image! But if you
compare the 35mm image vs. the full 810 image, the 810 image will be
much wider in its view. so to answer your question.....
<p>
If I take the same photograph with a 35mm camera and an 8x10, the
35mm cropped to the same aspect ratio as an 8x10, and appropriate
lenses on each camera to give the exact same field of view on both
cameras, am I wrong in thinking that the final photographs will have
a fundamentally different, if not immediately obviously different
appearance?
<p>
Yes, you are wrong, they will look identical. Whats
considered normal on 810 camera is considered long on 35mm! It's all
relative to film format.
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Spot meters have to be calibrated to a given reflectivity % ,
otherwise there is no way you can quantify the amount of light
hitting the subject, which is the goal. As you know, in the same
light, if you meter pure black, vs. pure white, you will theoretcialy
read a 5 stop difference. Pure grey, 18% would read dead center of
these two readings, ASSUMING the meter is calibrated for 18%
reflectivity. (18% is dead center of white and black) Sekonics are
not, they chose 13% vs. 18%, many 35mm SLR's chose the same! So if
you want to match your reflective meter readings with your incidient
meter on your 508, then you need to use a 13% grey card (which no one
makes, of course!)
<p>
If you want your refelctive readings to correspond to 18% grey,
sure makes sense, huh, then the best fix is to always always remember
to open up 1/2 stop, or change the ASA accordingly when in reflective
mode only! I have always been amazed how little this information is
offered by meter companies. Photographers bang their heads against
the wall trying making perfect exposures not knowing the reflective
meter is 1/2 stop off from what they assume. I used a Sekonic 778
spot meter for 1 year before I was informed of this fact by Mam USA.
<p>
Be careful if you don't use a Sekonic spot, I heard that some
makers, maybe Pentax do use the more accepted 18% standard. If
anyone knows, please post, I am curious myself.
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A few itmes I can add.
<p>
1. All sekonic spot meters are calibrated to 13% grey, not 18%,
therefore you need to close 1/2 stop to acheive 18% grey. This is
why its hard to match grey card readings vs. incident readings.
<p>
2. The 608 also does % of light coming from ambient vs. flash.
<p>
3. For low light incident readings, -8 EV and above, Quantum makes
the only meters that can read this low.
how long leve pigment ink prints as the epson 2000p mades?
in Large Format
Posted
Epson pigmented inks are rated for 200 years. Of course, not many
beleive this is reality. However, they are probably one of the
longest lasting inks on the market. And of course there is a stiff
price you pay for longevity - color gamut. Hence the reason 3rd
party inks have surfaced and are widely accepted in both desktop and
LF printers. Also, keep in mind, inks are only rated with specific
papers...certain inks will last 5x longer on specific papers.... all
this is at its infancy, and there is a lot of unsubstantiated claims
flying around! Beware...