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Yes, the manufacturers claims for reciprocity are right on the money in my experience. I've used it extensively for exposures up to 15 minutes and their advice for compensation is accurate.

Thank you all for your responses. I was leaning toward Fuji NPS and NPH films, and since the predominance of your comments affirmed my inclination, that's what I'll go with.

One final concern....

This is not exactly a LF question, but I can't think of a more knowledgeable gro up to pose this question to, so please bear with me.

I have gotten roped into shooting a friend's wedding. Since...

Matthew, my apology. Fuji has changed their spec sheet from what I originally read. It does say add 1/2 stop for exposurese from 120- 1000 seconds now. However, they don't offer any guideline...

Acros has the best reciprocity characteristics of any b&w film. I've used it extensively for night photography with exposures up to 20 minutes. As previously mentioned, it requires no...

If you find two of those 240A's, save one for me!

Todd, I have the Fujinon 150/5.6 W (and it does has a 52mm front thread). It's an excellent lens--sharp, contrasty, very compact with very adequate coverage. If you can get one at a good price,...

Thanks for all the responses. I have to admit, I'm surprised to hear AS is so conservative in rating the capacity of their bellows. I guess I'll just have to see what I can get out of the...

A number of cameras these days come with standard bellows that permit using lens es as wide as 65mm and as long as 360mm+. Thus my disappointment that the stand ard Arca Swiss F-line bellows permits...

You probably can get by with diluting T-max RS developer by half. To be safe you should look up the Kodak minimum developer required for 80 sq. inches of film--the equal of one 36 exp. of 35mm, 1...

Here's a review of a Shen-Hao camera: (http://www.ai.sri.com/~luong/photography/lf/cameras/shenhao/shenhao.h tml).

The review is quite positive, as is nearly everything I've heard about the...

A reduction back (while not cheap) is a great alternative and, like the other fellow suggested, much more accurate. In addition, if you use type 55, you can check sharpness and depth of field. ...

I can't help you with a brand name, but there are very accurate and inexpensive scales available for measuring gun powder. Reloaders use these scales to measure grains, and most of them will also...

Based on my experience with both films, I'd say you'll pick up 1/3 to 2/3 stop using HP5+ instead of TMY. TMY is slightly finer grained, but other than that, I find HP5+ superior overall.

If...

Thanks for the link, Paul. It's a stunning aray of work. I confess to never having heard of him, but after seeing his work, I will damn sure remember his name now.

You don't *need* a bag bellows for a 150mm lens. It's a normal lens and will work fine with a standard bellows.

On the other hand, I use a bag bellows for most of my shooting since I mostly...

Paul, I think you're fighting a losing battle with the style of tank that only permits agitation by sloshing side to side. The reason is the edges of the film will always receive more agitation,...

It everyone agreed on what film was best, there would be only one film--the one everyone likes. Of course that is not the case. *You* have to figure out what is the best film for *you*.

I use a Unicolor autoreversing base with Unicolor print drums for 4x5 sheet film. I've seen no streaking with a variety of films and developers. I use 250ml for up to 2 sheets and 500ml for up to...

Basically, pyro oxidizes too rapidly with constant agitation, and therefore, it doesn't matter if you increase the development because the developer is shot. How much solution are you using? If...

Well said, Steve. I could not agree more.

I can add that I used to enjoy a game with myself where I would estimate exposure before metering it to see how well I could do. This actually does...

I've had the same problem. Unfortunately, I don't have a solution. Hopefully, someone else knows.

The reciprocity information I posted earlier for Delta films was taken from Hutching's Pyro book. Fuji lists the reciprocity information for Acros on their website.

I've done lots of long exposures with Acros, and I've never encountered any excessive contrast buildup. I've developed very long exposures, up to 10 minutes, in my catechol developer and in...

Gordon Hutchings (PMK guy) has a very useful reciprocity chart in the back of his book, "The Book of Pyro." He claims Ilford films do not gain contrast during long exposures. No exposure...

Some years ago a friend of mine had an assignment to shoot the inner workings of a wristwatch. He wanted maximum detail of the tiny gears, so the chose to shoot it on 8x10. He tried a number of ...

If you are planning on using one lens for a while, the 210mm is the more versatile and is a good normal lens for a 4x5. The 250mm offers a slight advantage with portraiture, but the difference...

Steven Anchell says you can interchangably use sodium metabisulfite and sodium bisulfite. He even claims the two are often mispackaged, and sold one for the other. I've always used sodium...

I speak from a commercial background where one is expected to provide as perfect an image as possible. Therefore, I say, whatever you can do to improve your image--do it! The end result is all...

I think the 210mm is the most useful lens general purpose lens for 4x5. It was my first LF lens and I still use it pretty often. Mine is a Fuji W 210mm, which I can also use on an 8x10 with...

I agree strongly with Fred on the functionality and accuracy of Minolta meters. Certainly Minolta meters are the most popular brand, by far, in the studios of NYC. That should tell you something....

I would get a revolving back on any camera it's offered as an option. I've used Toyo G 4x5 for years, and I love the revolving back. Removing a back and rotating it manually is such a hassle ...

Doremus' response was excellent, so good in fact it should be in a book somewhere.

I can add two things: One, get Fuji Acros film for your long exposure work. It requires no exposure or...

Paul, I took a look at the pictures on the website and now I have an understanding of what you were talking about. Fred actually began to answer this one before he got sidetracked with history.
...

There is no shutter speed information displayed in the finder, only displayed in the exterior window. My Minolta Spotmeter F has aperture or EV displayed in the finder window.

You're right...

I use a Minolta Spotmeter F. On occasion I have borrowed a friend's Sekonic L-508. Her's reads about 2/3 stops above mine, for what it's worth. I cannot say if this is consistent throughout the...

A few years ago in the commercial world here in NYC, there was a lighting technique called "hose lighting." This involved using a fiber optic "hose" that would allow one to paint light on still...

To make it easier to learn what this looks like, take the back off the camera and move your eye to the corners. By doing this you'll quickly get a sense of whether you are in peril of vignetting. ...

Doug, that was hilarious. Mostly so because I've made enough similar mistakes to recognize with dread the point of no return--one more screw and I'll have it ....

Thanks for the laugh.

I can't speak for the Apo-Sironar, but I've used a Fujinon W 210mm/5.6 on my 8x10 with excellent results. It offers plenty of movement and tack sharp images.