Lensbaby Twist 60 Optic

Last month I purchased the Lensbaby Twist 60 Optic.

It is based on the Petzval design and is supposed to produce a swirl of bokeh, much like the older Helios lenses. I had been curious about it since it was released but also very hesitant as most of the uses seemed to be focused around portraiture photography. As I rarely shoot pictures of people, I wondered how this style of lens effect would work with inanimate objects also.

At wide open f2.5 & f2.8 the swirl effect of the Twist 60 optic is very pronounced.

It does mild down significantly by f4 – f5.6 and is almost non existent by f8 producing a normal view from any standard lens. I found the wide open swirl effect to be a little distracting but really do like how a minute amount of swirl from the f4 – f5.6 range does make the subject stand out a bit more.

Where this optic really shines for me is mounted on a 25mm extension tube, bringing it up to almost a 1:2.4 magnification macro.

I did try it on a 44mm tube but didn’t like the effect as much as the 1:2 ratio.

Though I occasionally find a use for the Sweet Spot or Slice Focus of my other Lensbaby optics, my favorite optics so far have been the Zoneplate and Plastic. I’m quickly seeing the Lensbaby Twist 60 optic will join those two.

Something about the “so called” imperfections of early film photography appeals to me.

 

Infrared Filter Comparison

I’ve really been enjoying working in digital IR this last year and have been doing a few Infrared Filter Comparisons to see which effect I prefer the most. I have attached a test subject of a tree stump in the desert shot with R72, #87 & IR850(87c) at the end for comparison. Continue reading

Seeing in Black & White – Infrared Photography

Infrared Photography resembles the image in my mind’s eye.

Plant Photography, Vine Flower, Lensbaby Plastic Optic, Bishop CA, Pentax K01, Macro, Macro Photography, 1:1 Photography, Closeup Photography, Infrared Photography, IR, Infrared, Fine Art Photography

I always preferred shooting black and white film before I moved to digital, I even usually prefer seeing other art formats in B&W. I didn’t even make the jump to digital until around 2007/08 because of the desire to continue working with b&w film and prints in the darkroom. The primary reasons for the switch were the hassle of disposing of chemicals in a rural environment and the Polaroid effect of seeing instant results.

Plant Photography, Grass Seed, Lensbaby Plastic Optic, Bishop CA, Pentax K01, Macro, Macro Photography, 1:1 Photography, Closeup Photography, Infrared Photography, IR, Infrared, Fine Art Photography

I loved the manipulation process in the darkroom to create the image I liked, I can’t say I really enjoy doing the same on a computer.

Plant Photography, Vine Leaf, Lensbaby Plastic Optic, Bishop CA, Pentax K01, Macro, Macro Photography, 1:1 Photography, Closeup Photography, Infrared Photography, IR, Infrared, Fine Art Photography

Over these digital years I have attended some fantastic workshops on how to process digital black and white, much the same as one would create a b&w image from a color negative. One of he best was at Shooting the West with Mark Citret, learning how to adjust curves, contrast and hue/saturation to try and achieve detail in each zone of grey from white to black.

Infrared Photography, Infra Red, IR Photography, monochrome, monochrome photography, Pentax K-01, Tiffen #87 Filter, Silos, Owens River CA, Owens Valley CA, Bishop CA

Still often I would find myself shooting in color. If the zones of grey were off a bit or the detail wasn’t fine enough in a particular zone, color would often mask what my mind’s eye thought should be there.

This last year I decided to try infrared photography again and had a Pentax K-01 converted to full spectrum using r72 and #87 filters on the lens.

Infrared Photography, Infra Red, IR Photography, monochrome, monochrome photography, Pentax K-01, Tiffen #87 Filter, Cow, Round Valley CA, Owens Valley CA, Bishop CA

What a joy! To work in almost pure black and white again has been extremely satisfying.

I’ve realized that even though my eyes do see color, (I can distinguish red from blue and yellow or green, etc.,) they are always bland.

In my mind’s eye I see in light or lack of, resulting in shape, form and texture.

Infrared Photography, Infra Red, IR Photography, monochrome, monochrome photography, Pentax K-01, Tiffen #87 Filter, Mt. Tom, Round Valley CA, Owens Valley CA, Bishop CA

Now the challenge will be going back to color:)

Infrared Photography, Infra Red, IR Photography, monochrome, monochrome photography, Pentax K-01, Tiffen #87 Filter, Ranch House, Round Valley CA, Owens Valley CA, Bishop CA

Tiffen 87 IR Filter

Testing the Tiffen #87

Recently I picked up a NIB Tiffen #87 Infrared filter to see if I would enjoy working more with the shorter IR wavelengths (to produce a truer Black and White image) or if I wanted to stay with the 720 and under filters to achieve some color from visible light.
I have always preferred viewing B&W photos and movies to color and when I hold an image in my mind it is almost always in B&W.Infrared Photography, Infra Red, IR Photography, monochrome, monochrome photography, Pentax K-01, Tiffen #87 Filter, Mono Lake CA, Owns Valley CA, Lee Vining CA
The 87 comes in around 795 or just at the baseline of the IR spectrum. Not quite as black as the 093 (830) or 87c (850) but still dark to the human eye.Infrared Photography, Infra Red, IR Photography, monochrome, monochrome photography, Pentax K-01, Tiffen #87 Filter, Mono Lake CA, Owns Valley CA, Lee Vining CA
I do like the contrasty effect the monochrome images have over the false color, though it is difficult to achieve focus.
Infrared Photography, Infra Red, IR Photography, monochrome, monochrome photography, Pentax K-01, Tiffen #87 Filter, Mono Lake CA, Owns Valley CA, Lee Vining CA
The majority of my favorite lenses are still manual focus, so I will just have to practice more.
If you can find this filter it is made of glass with a metal ring and well constructed, plus it comes in at about 1/2 the price of other name brands.
I find the images comparable to the Lee 87 film filters for those who already have a holder system.
Infrared Photography, Infra Red, IR Photography, monochrome, monochrome photography, Pentax K-01, Lee #87 Filter, Mono Lake CA, Owns Valley CA, Lee Vining CA
I did notice under the right light and white balance there were a few shots that did have a hint of blue sky after an attempt at color swapping.

 

Lensbaby Plastic Optic Revisited

Very busy this month but I was able to revisit the Lensbaby Plastic Optic and play with a bit of Macro Photography in the yard.

Plant Photography, Iris, Lensbaby Plastic Optic, Bishop CA, Pentax K1, Macro, Macro Photography, 1:2 Photography, Closeup Photography, Flower Photography, Fine Art Photography

These were taken using a de-glassed Takumar-A TC for an extension tube, approximately 27mm in length, giving around 1:2 magnification.

Plant Photography, Iris, Lensbaby Plastic Optic, Bishop CA, Pentax K1, Macro, Macro Photography, 1:2 Photography, Closeup Photography, Flower Photography, Fine Art Photography

Very pleased with he results and really like the soft focus effect the lensbaby plastic optic offers.

And a few with IR:

Infrared Photography and Pentax F300/4.5

Added a couple of new lenses to the infrared photography lens hotspot database,
the Pentax F300/4.5 and the Pentax F 35-70/3.5-4.5.

Infrared Photography, Infra Red, IR Photography, Pentax K-01, R72 Filter, Pentax F300/4.5, Owns Valley CA, Sierra Nevada CA, Mount Humphreys CA, IR Hotspot, Database

Both performed very well with no hotspots or flare issues.
The autofocus on both was fast and accurate.
Infrared Photography, Infra Red, IR Photography, Pentax K-01, R72 Filter, Pentax F300/4.5, Owns Valley CA, Sierra Nevada CA, Horton Creek CA, IR Hotspot, Database

I especially enjoyed the extended telephoto reach of the F300.
Can see how this lens is rated as a stellar performer and could easily become a go to lens choice.
Infrared Photography, Infra Red, IR Photography, Pentax K-01, R72 Filter, Pentax F300/4.5, Owns Valley CA, Sierra Nevada CA, Basin Mountain CA, IR Hotspot, Database

IR Lens Hotspot Database

kolarivision.com has an excellent ir lens hotspot database already compiled; however, I noticed most of my older film lenses weren’t included so decided to create a database (bottom of page) testing these lenses on the Pentax K-01.

Infrared Photography, Infra Red, IR Photography, Faux Color, Pentax K-01, R72 Filter, Manzanar CA, Owns Valley CA, Japanese Internment, IR Hotspot, Database
Pentax A35/2.8 Continue reading

Infrared Photography

I remember trying Infrared Photography a few times in my film days and found it difficult and challenging.

It always seemed I was guessing the exposure time and the focus, trying to approximate the red line on the lens distance scale.

Infrared Photography, Infra Red, IR Photography, Pentax K-01, R72 IR Filter, Bishop CA, Owns Valley CA

Winter Farm IR

Recently, I acquired a Pentax K-01 and had it converted to a full spectrum camera. Unlike film, digital sensors are sensitive to all light waves (UV, visible bands and IR) so most cameras use a hot-mirror to block the infrared bands and pass only visible light.

Infrared Photography, Infra Red, IR Photography, Mules, Animal Photography, Pentax K-01, 25A Red Filter, Bishop CA, Owns Valley CA

Winter Mules IR 1

Most conversions replace this hot-mirror and replace it with an IR based filter for a full time conversion, usually in the 720nm range. With the full spectrum conversion the mirror is removed and the IR filter is placed over the lens, much like the film days; however, unlike the film days I can see the image in live view just as if I was looking through a viewfinder.

Infrared Photography, Infra Red, IR Photography, Mules, Animal Photography, Pentax K-01, 25A Red Filter, Bishop CA, Owns Valley CA

Winter Mules IR 2

Apparently the new mirror-less systems make fantastic digital infrared cameras. They automatically set accurate exposure and the focus can be determined manually via live view or calibrated for auto focus. Another wonderful aspect of the K-01 is that it will take all my older Pentax K mount lenses.

Infrared Photography, Infra Red, IR Photography, Monochrome Photography, Monochrome, Pentax K-01, 25A Red Filter, Bishop CA, Owns Valley CA

Winter Tree IR

I now need to experiment with several to determine which will be good performers or or which will be susceptible to flares and hotspots. Infrared is often most noted for its use with contrast or faux colors with vegetation.

Infrared Photography, Infra Red, IR Photography, Faux Color Photography, Faux Color, Pentax K-01, 25A Red Filter, Bishop CA, Owns Valley CA

Faux Color IR Canal

Here are a few shots from the winter local scenery, a bit different but fun. I look forward to working with the camera as the spring green comes around.