Hey all - Anyone out there happen to have a Delrama adapter? We're looking for images of both the 35mm and the 16/8mm adapters. Anyone have one in their collection they'd like to shoot a photo of for

https://www.eventbrite.com/e/new-fast-glass-large-format-optical-considerations-cosponsored-by-sigma-tickets-141267503907 Roy H. Wagner ASC Director of Photography Honorary Fellow Royal Photographic S

I can't find the first part of this discussion so I'm not entirely sure what the original question is - but I can address some of this and hopefully help. Depth of focus - which is "depth of field" in

Hello all, You may have heard that Fujifilm recently released a new Premista LF zoom. You may have also heard that we commissioned a couple of short films to show off what the lens can really do in th

For those that have been asking, the Koerner Lens Summit I did last week is now available. Hundreds attended and there was a lot of good discussion. Hope people find this useful. https://youtu.be/vu8Y

Tomorrow I’m doing the Koerner Lens Summit, discussing “Basic Ideas Most People Get Wrong About Optics.” Come heckle me, should be fun. https://www.eventbrite.com/e/basic-ideas-most-people-get-wrong-a

This week… Which do you choose? A 5K Frankenrig with a 25K lens or a 25K camera with a 5K lens? Or do you go 12K camera with 15K lens? Where is the balance and what are the priorities? LA 9am, NY Noon

As I assume the depth of field behind a lens (=in front of and behind the sensor/film plane) corresponds geometrically with the depth of field around the subject in focus. In this case the shallow dep

Picking up from the tail end of the conversation between Mitch and I about autofocus - here’s a question for lens designers: When it comes to how you move groups of elements of lenses to achieve/maint

CML member Michael Sanders asked me to be on his excellent Camera Channel podcast to talk lenses. Somehow he managed to whittle down my hours of blabbering into a tight half hour. It’s available as a

Today I’m on the new Camera Channel podcast and next Friday I’ll be on the Koerner Lens Summit. The topic is “Basic Ideas Most People Get Wrong About Optics” so it should be a fun one. Watch me prattl

Sometimes, a rent can be a good and economical alternative to a purchase. Just let me know, if you are interested ! Sebastian

I just acquired sets of both 80, 80A, 80B, 80C and 80D Blue Filters AND a set of 82, 82A, 82B 82C Blue Filters and am wondering what the difference is philosophically between these two series of filte

I was moved to ask this after Mitch's comments in the thread about color correcting filters . I don't know if this is the right CML place but since it responds to comments in glass here goes: Mitch as

Hi Barry, Good work. You might like to add a little more info about using dioptres. There is a useful and practical aspect as to why supplementary close up lenses are designated +1, +2, +3 etc. First

Hi, I usually rent lenses for every shoot. Yesterday I have come across a set of Rokinon Xeen lenses at a very tempting price. I have seen several comparisons with much more expensive lenses and they

I have published a brand new article on macro and micro cinematography which cinematographers might find interesting. We all love to see images of extreme magnification to show a world which we can’t

Hello there, I think the most important thing in lens tests - ex. summcron or protar or ektar , wollensak or dagor- is to test the lens MTF for each line densities , not only for 20-40-60-80 lines den

Curious to know if any of you have seen this lens before, as in, actually in action with an IMAX camera. I’d be interesting to know more about it. But, for now, enjoy this interesting application of i

I have published a brand new article on macro and micro cinematography which cinematographers might find interesting. We all love to see images of extreme magnification to show a world which we can’t