Showing posts with label art filter. Show all posts
Showing posts with label art filter. Show all posts

November 16, 2013


I came across the BCLmacro during the last few days of the Olympus Art Filter Challenge and composing the last three posts on this blog have distracted me from following up on it. Isolation and a bottleneck in subject matter on board the vessel I am on was the initiator of this project which you can read about here. In the aforementioned post I talk of a personal goal to be revealed once the challenge was complete. Each day after shooting and uploading 4-5 of my keepers to Flickr, I submitted them to Ming Thein's reader pool. The ultimate "test" was to have my photos admitted. Ming is quite critical (which is a good thing) and judges the photos submitted based on light, subject, composition and idea; anything with a 2.5/4 rating or higher is let in. I ended up submitting 54 photos and of those... three made it:

Dramatic tone

Light tone
Cross process
I fell a little behind the average 10:1 rejection rate but considering these had absolutely no out of camera processing done to them, I was thrilled when I saw these make it in!!! During the challenge it was very difficult for me to find subjects that would bring out the best of each of the filters. I also felt that they hindered me in a way because I felt there was strong subject matter and good light but the filter compromised the shot. Luckily I was shooting RAW+JPEG and below are examples which have processed to my liking. One thing I learned throughout the duration of this challenge was that I really enjoy the post processing part of my workflow. Skipping it was like being sent to bed without dinner...







I think most of all I missed processing in black and white! The only B&W filter on the EM5 is grainy film and one day certainly did not cut it!!! Examples of photographs rendered using the art filters can be found here: Soft FocusPop ArtDramatic ToneLight ToneDioramaPinholeCross ProcessKey LineGentle SepiaGrainy FilmPale and Light Color. My favorites were "pop art" and "grainy film" and I was not very fond of the "soft focus" and "gentle sepia" modes. Overall I think I got better at a couple of things including using my kit flash (I forced myself to leave it on the camera and use it everyday), composing, especially when it came to horizons, and exposure. I still think that I rely heavily on post processing but I think that processing is necessary for a photographer to develop his or her own style. I really learned a lot from doing this and it did help the time pass by forcing me to partake in photography on a daily basis!! Thanks for dropping by, as always hope you enjoyed a couple of these photos =)

Sam D





November 13, 2013


Besides pure magic, ever wonder what is inside that tiny body cap lens (BCL) of yours?? Well.. I was led down the path to find out and along the way I discovered that a simple rearrangement of the internal lens element creates a "pseudo-macro"lens. I have estimated it has a 1:3 magnification ratio which is far from true macro capabilities (hence, "pseudo") and the rendering of images is, to put it nicely... unique. I don't suggest you go out and buy a body cap lens just to hack it up (because there are better alternatives to for cheap macro photography) and even if you already have one that is in working order its probably not worthy of sacrifice (especially if you enjoy using it).. BUT if you have abandoned your BCL, it has been rendered dysfunctional, or you really enjoy the lofi/holgaesque nature of the photos rendered (like I do!) then this may be a fun afternoon project =) I initially dismantled my BCL because during one of my daily photography sessions I noticed that it was excessively blurry around the edges. After cleaning it I saw no improvement, so I decided that since this lens is relatively cheap and easily replaceable that I was going to dismantle it and see if I could fix the problem.. Maybe there was something askew inside that was resulting in burred images??? 

Mysterious excessive blur
After disassembling and reassembling the problem did not correct itself and since I had gotten some pretty good panoramas from it, I figured my $50 was well spent in the time I had used it . I was planning on just tossing it and calling it a loss but then for some odd reason I thought of the technique used by many to turn old legacy glass into a macro lens using a cheap converter. Here the converter flips your lens so that the front elements face the sensor and the "mount end" is exposed to the elements. I thought to myself that the same concept should apply to the BCL, and hell, it was already malfunctioning so no harm in giving it a try! After some experimentation which entailed dismantling and re-arranging SEVERAL times (plus some modifications to the plastic) I finally came up with something that was usable.

BCLmacro
In order to accompish this, you will need:
  • Sacrificial body cap lens
  • Tiny screwdriver (small flat head worked best for me)
  • Rounded file or something else to make an existing opening larger (optional)
  • Q-tip for cleaning
  • Midget hands or lots of patience
Tools
If you want a rather significant vignette or do not want to lose the ability to protect the lens element then I suggest that you do not disassemble the front lens plate (part that has "OLYMPUS LENS 15mm 1:8.0" on the front). I have experimented with a couple of configurations, but once you modify the plastic via filing there is no turning back so it is best to see the examples below to get an idea of the types of photos each modification produces. All the examples below were taken using the kit flash (varying intensities) at 1/250 with an iso of 200. Raw files were then imported to LR4, re-sized when exported (1000 pixels to cut import time--I am offshore with bad internet), and re-sized using Blogger (X-large). 100% crops of RAW files were not re-sized at any point and no post processing (contrast, sharpness, clarity, etc) has been done on any of the files.

A. Simple lens element reversal without further modification: results in heavy vignette/ small degree of color fringing:


100% center crop

B. Removal of front lens plate completely: results in lighter vignette with the cost of increased color fringing


100% center crop

C. Filed down front lens plate: similar to removal of lens plate (B.), but front of lens looks better


100% center crop


D. Filed down internal platform and complete removal of front lens plate: almost no vignette but edges still exhibit color fringing


100% crop of in-focus area
E. Filed down internal element + filed down lens plate: similar to "C."

100% center crop
If you are interested in this hack disassembling the body cap lens should be your first move. You will end up with (all names made up; from left to right in photo below):
  • Mount, 4 associated screws, 8 tiny golden donuts (2 not pictured, lost)*
  • Internal platform (in picture turned right side up with red dot facing you) + front lens plate, three associated screws and lens cover (2 pieces)
  • Lens element + large spring
  • Lens element holder and three associated screws
  • Small spring (not pictured--lost)
  • Tiny metal ball (not pictured--lost)
* I have no clue what these were for :/

Parts
The order you disassemble the BCL is to: Detach mount --> Detach lens element holder --> Detach front lens plate. If you do this, you end up with a bare internal platform. Reassembly is not difficult as the BCL is wonderfully simple, but if you want to reduce the amount of vignette then you need to file down the internal platform (A) and/or the front lens plate (B). I ended up filing less than 1 mm off the internal platform and a little more than 1 mm off the front lens plate. Remember once you do this (and depending on how much you file away), the opening of the front lens plate will become too large to be covered using the sliding cover and you end up with two gaps. So if you still want to be able to close the BCL to protect the lens element then I suggest you do not remove the front lens plate and go with the "heavy vignette" option. Honestly I probably would have done this if I had know better, but once I filed down the opening it was too late. Also if you leave the front lens cover intact then there is no reason to file down the internal platform. The other plus side of not altering the plastic is that you can switch back to wide angle amazing if you get tired of the macro hack.

(A) Bare internal platform and file
(B) Front lens plate and file
After you have filed the internal platform and/or the front lens plate turn the internal platform upside down (red dot down) and place the lens element inside its holder with the small opening facing you (C).

(C) Lens element reversed and placed inside internal platform
Then attach the lens element holder to the internal platform using the three tiny screws provided (D).

(D) Lens element holder attached to internal platform
 If you have taken the front lens plate off for filing then the next step will be to attach it back to the internal platform using another set of three very tiny screws (E)

(E) Front lens plate attached to the internal platform
Finally line up the mount as pictured below (F), attach it to the internal platform using the four larger, but still very small screws and presto! you are done(G)!

(F) Lens mount and internal platform 
(G) Lens mount attached to internal platform

It really is insanely simple... especially if no filing is done. Take the BCL apart, flip the lens element, and put it back together. I ended up not needing either of the springs, the tiny ball,  or the two pieces of plastic that make the lens element cover. If you plan to use the lens cover then do not mess with the tiny spring and ball as these are needed for the lever to function. In this scenario, the only thing you will not use is the large spring. I am planning to write more about the details of how this lens performs in the very near future (probably post tomorrow). I am actually extremely surprised by the BCLmacro's sharpness.

Oh what a world!
The image quality is no where near that which you would get with a dedicated macro lens... it is still the body cap lens after all, BUT if all images were cookie cutter sharp, photography would be an extremely boring art form. I started out a big fan of the BCL (you can find a great collection of images from a variety of people here) and this modification has only added fuel to the flames of my love for this unique lens. If you do decide to try this out I want to state (even though it should be common sense), that I am in no way responsible for you ruining your body cap lens or injuring yourself during any part of this process. As always, innovate at your own risk. To help you decide whether this is something you are interested I will leave you with sample photos which have been processed to taste in LR4. I have created a Flickr group dedicated to this hack and if you are brave enough to convert PLEASE share your photos!!! Thank you for dropping by hope you have an amazing time with this strange (almost) macro =)

Sam D.


**********************************************UPDATE 12/12/2013**********************************************
As an alternative to dismantling your body cap lens, I found you can also use Meike extension tubes with an unmodified body cap lens as a macro alternative. See here for details. The extension tubes can also be used with the BCLmacro:

BCLmacro
BCLmacro +10 mm extension tube

BCLmacro Sample Photos:



Some photos look great with the heavy vignette.. especially in B&W


Considering what this is... Bokeh is surprisingly good


If photo is cropped, vignette and color fringing are negligible
P.s. The working distance of the BCLmacro is approximately 7 cm so you have to get in really close. BUT you can effectively use the kit flash to counter the shading you will experience at this proximity.. Also the DOF is about 1 cm so working is magnify mode is your best bet. More on this in tomorrows post.

If you live in, or are traveling to Florida and would like to schedule a photo-shoot, I am currently offering portrait services in and around Central Fl. Check out more of my work at www.samgoldphotography.com
Catch of the day: Pale & light color
I just wrapped up the final day of my Olympus Art Filter Challenge working in pale & light color mode! This filter is similar to the "soft focus" and "light tone" modes in that it de-saturates colors and tones down contrast but you maintain sharpness. It was fun photographing things up close again with my modified body cap lens but I also used my 50mm legacy. In both cases, photos in this mode came out extra "dreamy" and vibrant colors were converted to their pastel relatives. This is another filter that doesn't really fit my style, but I think the muted photos work especially since today it was raining and wet outside. It seems the weather has been very cooperative this past week and a half and has helped to bring out the best of each of the filters! 


Sludge, 50mm, f/2.8, 1/125, iso 200
Four stories, 50mm f/5.6, 1/30 iso 200
Barrel of monkeys, 15mm (BCL MACRO), f//8, 1/250, iso 2500
Odd beauty, 15mm (BCL MACRO) f/8, 1/60, iso 640
Ripple, 50mm f/5.6, 1/250, iso 2000
The pale and light color was fun to experiment with, but the in camera processing was not really to my liking and I will probably not use this filter again. However, forcing myself to experiment with these art filters was fun and since I had the intention of only posting SOOC Jpegs the challenge helped me focus more on nailing exposure and composition in camera rather than relying on post processing. I recommend the challenge... or any photographic challenge really, I plan to try Slotshots 1/2 sec challenge once I get back on land and have some new subject matter.  It promoted growth and helps you stay creative =) This concludes my OAFC, but sometime in the next couple of days I will be posting a follow up with my favorites from each filter as well as photos that I felt worked better when I processed them to taste using LR4. I hope you enjoyed any part of this series and thank you very much if you returned to see examples of each of the different filters. I am so very excited to take the things I have learned to create better photos and an even more excited to get back into Lightroom and start processing again!!!  =)

Sam D.

More sample photos:



 
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