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Is the loss of sharpness associated with diffraction an absolute function of the ratio of focal length as related to aperture much the same as is depth of field, or are there other elements ...

Based upon my personal experience, one can not do better than Chuck Farmers workshops and he(Chuck) is one hell of a nice fellow as well. I believe that he has one coming up shortly in Death...

Hello Scott, I live in Palm Beach Gardens and unfortunately know of no large format resources in the area. If you would like to get together some day perhaps we could shoot a bit with what I have...

Does anyone know of any workshops or tours being offered in the Washington or Or egon area. I live in South Florida and am interested in shooting in the Columbia River Gorge, Olympic Rain Forrest,...

Mr. Hosni,

Ilford FP4+ is readily available in 5X7 format and is an excellent choice. It is my understanding that 5X7 inch film holders will not accommidate 13X18 cm. film.

DAB.

Thank you for the responses. I just called Ken Hansen to check with him and, of course, he has, make that had, a 95mm 81A Heliopan in stock.

DAB.

I have been unsucessful in trying to find a 95mmm 81 A Heliopan filter; they do offer a KR 1.5. How similar are these two? Is the KR series intended as warming filters? They ( Heliopan) also offer a...

Many thanks to everyone for the very helpful responses. Hopefully, I will now be able to make some good images while feeding the mosquitoes.

DAB.

In photographing the moon, when low on the horizon, how long a shutter speed can be used before the motion of the moon becomes evident. Also I am uncertain abou t exposure; I believe one should...

Sorry about that...I do apologize!!!

DAB.

Greetings to All, I recently found a thread under the workshop category suggesting that folks who have atteded large format photography workshops share their thoughts on their ex periences...So, here...

I have both a Grandagon 75mm f/4.5 and a 110 XL. If I wished to use a center fil ter, could I get away with buying just one and using it on both (they each have 67mm threads) or is there enough...

I have both a Grandagon 75mm f/4.5 and a 110 XL. If I were to choose to use a center filter, could I get away with buying just one and using it on both (they each have 67mm threads) or is there...

I have taken a somewhat different approach. I keep a 77mm step up ring on my 110, as well as all my other lenses, and base all my filtration on that size. I have no problem with either polarizing...

I am interested in hearing from anyone having experience with Schneider G Claron lenses. My concern is that they are single, as opposed to multi, coated. Is thi s factor obvious, or even noticable,...

Michael,et.al., I love my Quickload film holder but wonder if it will still work if I were to keep it clean...I have come to admire its rich and varied patina...Oh well!!!

DAB.

Does anyone know if the pouch shown in Masayoshi Hayashis' post is available in this country. Considering the nasty muck and crud that mine is exposed to, it would be very useful.

DAB.

So far as I know, Badger Graphics (800-558-5350)is the only source of Neopan 80 in the US. DAB.

I just hate repetitious redundancy, but: Fuji Neopan 80 is available in Quickloads through Badger Graphics - it is a truly wonderful film and the Quickload format works!!! They have also dropped...

Fuji Neopan 80 is available in Quickloads through Badger Graphics - it is a truly wonderful film and the Quickload format works. Regards,

DAB.

Greetings, Is there a reason to prefer a standard UV filter over a Skykight or "Strong UV" ala Schneider 415 for shooting in high elevations? I will be exposing Velvia as well as black and white.
...

On most days, I am able to spell my first name correctly...'dont know what is going on this morning...#*!?~

DAB. computer!!!

Greetings, I am considering the purchase of a Rodenstock APO-Ronar 360 f/9: s/n 724559. Can anyone help me to determine the approximate age of this lens and if it is multi coated? Many thanx, DAB.

Greetings, Does there exist a daylight (tank) processing system for the 5X7 format? I have been able to find several for 4X5, but none that will accomidate 5X7. Thanx, DAB.

Greetings, Could some please explain, perhaps even elaborate, on the nuances and ramificati ons of the various incarnations of "Quick Load" type film holders; specifically, whose film can be used...

Assuming your camera has adequate bellows draw,is there any reason to choose a l ong focal length standard lens as opposed to a similar length tele design? Thanks, DAB.