Tuesday, May 29, 2018

24,000,000 Pageviews for the Visual Science Lab as of 1:44 p.m. today.

Leica M6+35mm Summicron. Tri-X. Family dinner at Asti.

Pure dogged determination and bad time management skills make for a long run on a niche blog. Did anyone like the last 3651 posts? Drop a comment into the mix and let me know. 

And if you are unsatisfied with the content I'll return your initiation fee AND your deposit. We don't charge here so we make it up with volume...

Weather Service Predicts Record Highs for Central Texas this Week. Time to break out the shorts and the lighter cameras...


Actor/Talent/Model and Friend, Noellia, and I spent a couple hours one Summer 
making photos on one of the hottest days of the year. 
That's the Barton Creek Spillway in the background.
We were using a Sony Next-7 and the 50mm f1.8 lens at the time. 
Lots of fun stuff to shoot when everyone is out playing in the water.

The national weather service is predicting that we're about to get socked with some record high temperatures near the end of this week and over the next weekend. There's a high pressure zone parked right over the top of the Austin and San Antonio area. You would think that Austinites would head indoors and find places like cold, dark movie theaters and chilly malls to lurk around in, and I'm sure some of our recent transplants will, but most of the city's core population will see it as an excuse to hit the local pools; natural and manmade.

I'm trying to be better about too much sun exposure so I've shifted to the 7:00 a.m. swim practice for the Summer months. The water is getting warmer but that didn't stop our masters swimmers from hitting the pool in force today. We had four and five people circling per lane and another group stepping in at 8:00 a.m. as we exited the early workout. As the water temp goes up our yardage tends to go down a bit. It's just as easy to get over heated in a warm pool as anywhere else.

So, what are the long practiced tips for surviving photo shoots in the outdoors in the Texas Summer?

Here are mine:

1. Start early in the day. Get to your locations at first light instead of waiting for the sun to warm everything up. If you start early you can finish early. While the sun might be at its peak around noon to one p.m. the heat continues to rise until about 5 p.m. Finishing by 2 or 3 pm is how the landscapers do it....

2. Don't wait until you feel thirsty to start drinking water! By the time you feel thirsty you are already getting dehydrated. Start with a big glass of water even before the first cup of coffee and then repeat all day long. And, actually, yes; coffee counts as part of your hydration, if you are an acclimated coffee drinker.

3. Just as oil companies transition from Winter gas to Summer gas formulations it may be time to leave the Nikon D5 or Canon 1DX and the big ass zooms back at the house and transition to "Summer" cameras. I'm back to packing the much smaller and lighter Panasonic GH5's and a smaller assortment of lenses. The heat makes for different priorities AND the light levels seem abundant. 

Less weight makes for less work which makes for less thermal build up in your own system.

4. I own a bunch of black camera bags but I also own a big Domke camera bag that is a very light beige color. All those black bags and cases do a great job absorbing heat. The beige one does a decent job reflecting it. I also take a FlexFill (circular collapsible reflector) along and use it as a bag cover when I have to stop and shoot in an area where there is no shade. I put my bag down, pop open the reflector and put it on top with the silver side facing up toward the sun. 

You may think that cameras are built to handle heat but anything over 104f (and a black camera can hit 140 in direct sun) causes increased noise and artifacting. If you are shooting video you'll find shooting in direct sun can also cause so much heat build up that your camera shuts down! I'm always trying to find ways to keep black cameras and lenses covered when I shoot in full sun. 

One more thing, if you are used to relying on hard stop infinity settings on your lenses be aware that the heat can cause metal lenses and glass to expand and will change marked focus accuracy!

5. Wear a freakin hat!!! You need to create your own shade and when the sun is brutal a good hat will make a big difference. Get one with some good front overhang so it can help keep sunlight off your viewfinder. 

6. Dress for coolness but be sure to cover up exposed skin or douse it regularly with sunscreen. I prefer to cover with loose, thinner clothing than to coat myself with chemicals. There are lots of technical shirts, even long sleeved ones, with high SPF ratings.

7. It may be a perfect shot that you are waiting for but if you feel too hot it's time to make for the shade, douse yourself from head to toe with water and stay still for a while, letting evaporative cooling do its work. If you feel ill effects then get into the air conditioning. Another shot will certainly be there tomorrow. Heat stroke takes all the fun out of photography...

8. If you plan on using a tripod you might want to get a nice light wooden one that won't transfer heat when you grab it to move to the next location. If you don't want to buy a new one then wrap some fabric around the thick, top legs and secure with gaffer's tape. At least when you grab the tripod legs you won't burn your hands. 

9. Don't leave your cameras in your enclosed car; especially if you are parking in full sun. Car interiors get super hot and while the circuitry in your camera may not fry you can imagine the damage cumulative heat does to rubber weather sealing, faux leather texturing and LCDs. Just take your camera in with you like we all used to do in the film days. We all knew that film didn't mix well with heat....

10. Instead of long expeditions think in smaller chunks of shooting interspersed with lots of stops for air conditioning and beverages. Topping off a day of shooting with a nice craft beer might be a good way to restore some lost electrolytes....

That's pretty much my list. We could get more detailed and talk about keeping a couple gallons of water in your car, making sure your tires aren't getting brittle, and a bunch about shoes, but I'm aiming the above advice toward urban shooters who aren't in remote areas. But, Heat is Heat.


Monday, May 28, 2018

An incidental shot from the tech rehearsal last night that.....

...makes me appreciate the nuanced eye of the the show's lighting designer and also adds to my appreciation of the optical qualities of the Nikon 70-210mm f4-5.6D Ai Zoom lens. An elegant rendering from the long end of a consumer zoom lens, used wide open...


From: Sundays in the park with George. Zach Theatre. Starts this week.

Old School. Shot at a fashion show in South Beach, on the beach. Old school film work with a Leica R8 and the venerable 90mm Summicron.

Two assignments in one city in one week. It was 2001. We were Shooting for a telecom company called, Broadwing Communications. We were shooting for a south American fashion show. We did digital for the corporate folks and color negative film for the fashion. Burning the candle at both ends; pounding the room service at the Delano South Beach Hotel. That's back when people really knew how to spend money....








A quick review of my 2nd copy of the Nikon 70-210mm f4-5.5 Ai Zoom. A cheap, battered copy I bought for $75.


I'm always a bit curious about older lenses. I'm a cynic. I think camera makers use new lens design tools not necessarily to make lenses that are distinctly better than their ancestors but to make the new lens designs easier to manufacture and cheaper to make. I'm sure new glass types are wonderful and some of the newest lenses can do amazing things, in the right hands, but I am equally sure that there is a general race on to make lenses more uniform; more consistently consistent, and if they get some optical improvements then that's considered a bonus...

To a degree I think lens design is driven by an uninformed and loud group of consumers who have different ideas about what is essential in a lens than the lens designers themselves did a decade or so ago. The emphasis now is on lightweight, fast apertures and (because of very poorly conceived lens test interpretations) sharpness across a flat field (to the detriment of potential sharpness in the center 2/3rds of the lens). 

I was shopping for a 70-200mm lens last week, knowing that I'd soon be shooting some theater productions with the newly acquired Nikon cameras. I was shocked to see the price of the current 70-200mm f2.8 Nikon lens was $2800. I was so miffed at the rampant inflation for this product category that I abandoned my search for a current product all together and decided to plumb the opposite end of the market. I had in my own inventory a Nikon 70-210mm f4.0-5.6 manual focusing zoom that I'd picked up cheap a while ago. I subsequently read that Nikon doubled the focusing speed on the "D" series version of the same lens and I searched out a copy of that version. The one I found is very functional but a bit beat up. That's okay since I spent only $75. 

I took it along with me last night to do technical scout of Zach Theatre's newest production in anticipation of the "official" shoot we'll be doing on Tuesday. I didn't have overly optimistic expectations that the old 70/210 would be anywhere near as good as a modern lens but I wanted to try it: under stage lighting (this play has a very contrasty lighting design...), handheld (no VR back when this lens was made and originally sold) and at it's wide open aperture (look, I figure I'd just be using this for the longer end and it's already f5.6 from about 105 onward).  Seems like a viciously unfair test for a lens that's decades old --- right?

Well, I'm not so sure. Below are three variations from the same digital frame. The older screw drive lens was able to nail focus quickly and well. The lens also resisted flaring. But the thing that I appreciated is that the image is nicely sharp. As sharp as I expected it could be on a Nikon D800 set to 3200 ISO. 

After seeing the results and comparing similar files shot with the 24-120mm f4.0 and the Sigma 50mm f1.4 Art lens I've called off my shopping and researching for a newer or faster telephoto zoom. While it may not check all the boxes for you this one delivers enough image quality for me. If I need a better lens I'll pull one of the Olympus Pro lenses out of the drawer and put it on a Panasonic GH5. Not a bad deal for a whopping $75. Sorry, no link. You'll have to find your own.

The full frame.

A tight crop.

Getting into the 100%, pixel peeping realm.



I'm as interested in cheap lenses as I am fascinated by lenses that purport to scrape the ceilings of possiblility.



A VSL blog reader, Stephen Kennedy, kindly sent me a lens. He seemed to understand my attraction to older, less expensive, more mainstream lenses from days gone by. The lens he sent along is a Nikon Series E, 36-72mm f3.5 Ais. It's manual focus only and a short zoom lens and it fits right into the genre of lenses I like to put on the front of my cameras when I head out in the midday sun for a bout of photographing. A terse zoom range, no frills and imbued with very decent performance- especially when used at f5.6 and beyond. 

There are some other Nikon Series E lenses, released in conjunction with the low cost Nikon EM SLR, that show up on the radar screens of old lens aficionados, the most popular being the 100mm f2.8 and the very, very well regarded 75-150mm f3.5. All of them were above average performers but never attained a huge following when new mostly because they represented a move away from Nikon's traditional heavy metal lens construction which always seemed to promise a certain indestructibility. 

I put a 52mm circular polarizer on the lens, attached it to the front of a Nikon D800 and set out to see just how good ( or bad ) this little jewel of a zoom lens could be...

Overall, I found it to be smooth, fairly sharp and well behaved. The one aspect that could be a deal killer for someone looking around for an inexpensive alternative to today's pricier lens fare would be the lens's close focus limitation of 4 feet. It makes casual portraits a bit dicey. 








Saturday, May 26, 2018

OT: In case anyone is wondering Captcha has done a great job smashing the spam.


The torrent of spam I've been enduring has ground to a halt. None today. Two weeks ago there would have been dozens of invitations for hair regrowth, marriages to foreign super models and so much more. I should have added Captcha to the blog years ago. 

I love being asked if I am a robot. 

If I were to be a robot I'd hope to be eight feet tall, ripped like a Spartan and encased in a solid Vibranium shell. And I would go looking for people who spam. With my adamantium claws out.

F*&K Spam.