Tag Archives: blur

Mastering blur – a month with the Otus 28mm f/1.4, 55mm f/1.4 and HCam Master TS

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The Tuileries Garden in Paris. Handheld, maximum diagonal tilt, @f1.4.

  • Introduction

About a month ago, I was extremely fortunate to test two of the best and most impressive lenses for full frame cameras, together with a new tilt/shift adapter meant to mount manual lenses on a mirrorless system.

Namely, I got to test the HCam Master Tilt Shift adapter together with a couple lenses from the Otus line from Zeiss: the Nikon mount 55mm f/1.4 and the yet to be released Nikon mount 28mm f/1.4.

The main purpose of these lenses is admittedly for high-resolution stills and video, I like to do things differently. This is why I spent a few weeks in France testing them, and I was especially interested in seeing how well they would perform with long exposures, or when they are shifted, tilted, and of course how sharp they are wide open.

  • Disclaimer:

The purpose of this article is to share some of the images I shot with these lenses and some of my impressions. I am not sponsored nor have been paid by either ZEISS nor HCam for this test. Additionally, it is not meant to be a formal test with charts, or shooting a wall of bricks at different apertures to look at distortion and such. Its purpose is really to see how the adapter and lenses behave in the field, when used for fine art still photography. Unless mentioned otherwise, the images you will find below have been shot on a Sony a7RII in uncompressed RAW mode, imported in Camera RAW and Photoshop for minimal editing (curves, contrast etc). They have only been edited by applying minor white balance, curves, and contrast tweaks, and nothing more except for a B&W conversion with Silver Efex Pro2 for a few of them. Each image was eventually downsized for web browsing and saved as high-res jpgs files. The behind the scenes images were shot with a Sony RX100 IV.

  • The HCam Master TS adapter:

This very solid and precisely machined adapter is German-made. A detail worth mentioning as it sticks to the reputation, and is extremely well built and sturdy. It is meant to mount Canon EF lenses (or other adapters for medium format for that matter) on a Sony E mount mirrorless. Unfortunately, it does not have electronic connections, which means that you can only use fully manual lenses with it (unless you are willing to go through this route). For that reason, I was sent Nikon mount Otus lenses with an extra slim adapter, but I’ll get back to this later.

Unlike any other adapter though, the HCam Master TS allows the photographer to tilt and shift the lens with respect to the camera body. It allows for 10° tilt and up to 15mm shift in each direction if the image circle is large enough, which brings and incredible freedom of creation and control for the position of the focal plane and the perspectives, respectively.

Thanks to a very smart and secure system that can be locked in place when needed, it is possible to rotate both the lens and camera independently, and this allows for manipulating the direction in which the lens is shifted and tilted, as well as the orientation of the camera (landscape or portrait). The HCam Master TS system can therefore be used for either architectural, fine art, and/or portrait photography.

The Master TS system is meant to be used on a tripod: the foot can be securely tightened through a couple of screws onto an Arca/Swiss type plate (included in the box), and because both the lens and the camera can be rotated, it is no problem to orient, tilt and shift to the maximum amount the setup. Since the camera/lens setup is mounted on the tripod using the foot, it is good to note that it is the camera that shifts and tilts with respect to the lens, which is opposite and an advantage compared to modern FF T/S lenses. In some occasions during my trip to France however, the use of a tripod was forbidden, which forced me to use the system handheld. In some rare cases I ran into the issue of not being able to tilt all the way because the system would come into contact with the camera. Using the Otus lenses however was nice because I only had to open slightly more the aperture in order to “increase” the amount of blur in camera, so it was not a real issue.

For more details on the adapter, please see the images below:

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Front view of the adapter mounted on the Arca/Swiss type plate. Canon EF mount (lens) side.

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Back view of the adapter mounted on the Arca/Swiss type plate. Sony E mount (camera) side.

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Front view of the adapter; Canon EF mount (lens) side, zoomed on the lens release and rotation system (no rotation here).

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Front view of the adapter; Canon EF mount (lens) side with about 20° rotation of the camera mount.

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Back view of the adapter; Sony E mount (camera) side with 15mm shift one way or the other and roughly 20° rotation of the camera mount.

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Side view of the adapter with with 10° tilt of the camera mount.

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Side view of the adapter with with 10° tilt, 15mm shift, roughly 10° rotation of the camera mount and 45° rotation of the lens mount.

  • Nikon F to Canon EF mount adapter:

Because the HCam Master TS has no electronic connection and the Canon versions of the Otus lenses require it, I decided to test the Nikon F mount versions. Which means that I needed a slim, sturdy and secure Nikon F to Canon EF mount adapter in order to mount the lenses on the Master TS and keep infinity focus (the flange distance for Nikon being larger than Canon, one such adapter exists).

After reading a few reviews online, I settled for the FotodioX Pro adapter (without focus confirmation chip), which was well rated and allowed me to remove it in the field from one lens and put it on the other in a matter of seconds, with no need for extra tools.

  • Zeiss Otus 55mm f/1.4 & 28mm f/1.4, Nikon mount:

What to say besides these are two exceptional lenses?? They are solid, and they are things of beauty. The front and back lenses are amazing to look at, the focusing ring is smooth, precise and a pleasure to rotate, and the aperture ring (only for the Nikon mount versions) is precise, and lets you choose aperture with a 1/3rd stop precision on small f-stop numbers, and larger steps at smaller apertures (see picture below).

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BTS image in Paris at the Pantheon of me shooting with the Sony a7RII, HCam Master TS with 10° tilt and Otus 55mm f/1.4 fully open.

To address the elephant in the room, these lenses are BIG and HEAVY, especially the ZEISS Otus 1.4/28  it is bigger than the (ZEISS Otus 1.4/85). But this is exactly what you want in such fast lenses: a large front element (77mm filter thread for the 55mm, and 95mm diameter for the 28mm!!), huge image circle, especially if like me you want to tilt and shift them.

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Phone snapshot of the Otus 28mm f/1.4 when I received it, with a quarter coin as a size reference. Please forgive the low quality and keep in mind this is a pre-production lens, and that the box was therefore not the box it will be shipped in.

  • BTS images:
  1. Otus 55mm f/1.4 @1.4 (in Paris, in front of the Pantheon):

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My setup for most of my shooting in France: Sony a7RII, HCam Master TS and either the Otus 28mm or the 55mm (here with the 55mm, tilted at 10°)

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Front element of the 55mm. As you can see, it was rainy, but thanks to such a wide aperture and the added tilt, the rain drops are invisible in the final image (see below).

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Zoom on the 55mm lens / Nikon F to Canon EF Fotodiox / Master TS adapters. No light leak visible for normal exposures, no problem under slight rain.

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Live view on the back screen of the Sony a7RII. It’s hard to tell here, but only the top of the cross on the Pantheon is sharp. See image further down for confirmation.

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Final image after conversion from uncompressed RAW file shot with the Sony a7RII. Only the cross is focused, the lower parts of the image blurring out very nicely. For those interested, we can see two nice out of focus highlights with 9 sides, as expected from the 9-blade aperture. Please not that with a full 10° tilt, no vignetting can be seen.

   2. Otus 28mm f/1.4 (at one of the most beautiful Loire Valley Chateaus, Chenonceaux) DSC00207_adj copie

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Sony a7RII, HCam Master TS and Otus 28mm (with 10° tilt and camera ~5mm shifted down).

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Live view on the back screen of the Sony a7RII. Only the castle is focused.

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My setup for long exposure: additional Cokin Z-Pro adapter and holder, Formatt Hitech ND16 Firecrest 100x100mm filter and storm jacket to protect from light rain and any possible light leakage coming from the multiple adapters.

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Final image after conversion from uncompressed RAW file shot with the Sony a7RII. No light leakage after ~3 minutes long exposure @f8. The Zeiss Otus 28mm f/1.4 is a great lens for long exposure tilt/shift photography!

  •  More images shot with this system:

1. BTS:

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Shooting ~3 minutes long exposure with the Zeiss Otus 55mm f/1.4 @f5.6, together with tilt and shift at Villandry, one of the nicest castles of the Loire Valley, famous internationally for its French-style gardens.

   2. Otus 28mm f/1.4:

f2.8 DSC00374_adj copie     Shooting in the rain at the Luxembourg Gardens in Paris. Handheld, maximum tilt to the right, @f8.

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Shooting in the rain at the Luxembourg Gardens in Paris. Handheld, maximum diagonal tilt, @f8.

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   The Tuileries Garden in Paris. Handheld, maximum tilt down, @f2.8.

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Zoom of the previous image.

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The Tuileries Garden in Paris. Handheld, maximum tilt down, @f5.6.

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Chambord. On a tripod, maximum diagonal tilt @f5.6 and ~5mm vertical shift (camera lower than lens). Slight vignetting in the upper left corner.

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Zoom of the previous image. Maximum sharpness is clearly located on top of the highest tower.

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Chambord. On a tripod, 6 images stitched (3 horizontally, over an approximate 10mm distance total; 2 vertically shifted positions accounting for about 5mm), no tilt @f2.8. Slight vignetting in the upper left and right corners.

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Chambord. On a tripod, 6 images stitched (3 horizontally, over an approximate 10mm distance total; 2 vertically shifted positions accounting for about 5mm), no tilt @f8. Each image is a ~5 minutes long exposure. No more vignetting is visible.

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Chambord. Handheld, maximum tilt to the right @f4.

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Chambord. Handheld, maximum tilt to the right @f4.

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Chenonceau. On a tripod, maximum tilt and ~5mm shift down (for both) of the camera @f5.6.

A few extra images shot in Boston, MA:

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On a tripod, no tilt nor shift @f8.

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Zoom of the previous image, top left corner.

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Zoom of the previous image, bottom right corner.

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On a tripod, maximum tilt down, no shift @f2.8.

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  Zoom of the previous image.

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On a tripod, maximum tilt down, no shift @f1.4.

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 Zoom of the previous image. Please note that at f1.4, only the eyes are sharp, the rest getting blurred as you move away from the focal plane.

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On a tripod, maximum tilt down, no shift @f4.

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 Zoom of the previous image.

2. Otus 55mm f/1.4:

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Pantheon, Paris. On a tripod, maximum diagonal tilt @f4. Vignetting is visible but still very manageable.  

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  The Tuileries Garden in Paris. Handheld, maximum diagonal tilt, @f5.6.

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The Tuileries Garden in Paris. Handheld, maximum tilt down, @f4.

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The Tuileries Garden in Paris. Handheld, maximum diagonal tilt, @f4.

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The Tuileries Garden in Paris. Handheld, maximum diagonal tilt, @f4.

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The Tuileries Garden in Paris. Handheld, maximum tilt to the right, @f2.8.

f1.4 DSC00526_adj copie The Tuileries Garden in Paris. Handheld, maximum diagonal tilt, @f1.4. 

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The Tuileries Garden in Paris & Concorde Square in the distance. Handheld, maximum tilt to the right, @f1.4.

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Zoom of the previous image.

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The Tuileries Garden in Paris & Concorde Square in the distance. Handheld, maximum diagonal tilt, @f4.    

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The Louvre Museum in Paris. Handheld, maximum diagonal tilt, @f5.6.

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Villandry. On a tripod, maximum diagonal tilt @f5.6.

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Villandry. Handheld, maximum diagonal tilt @f5.6.

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Chambord. On a tripod, maximum tilt to the right @f4. Three images stitched in post, vertically shifted over an entire ~15mm course. Vignetting is clearly visible in the upper left, right and lower right corners.  

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Chambord. Handheld, maximum diagonal tilt @f4.

  • Final thoughts:

As you probably have noticed, I’m very excited about this particular setup: either 28 or 55mm Otus lens mounted on the HCam Master TS and a Sony a7RII mirrorless camera. The Otus lenses themselves are AMAZING and top quality, very pleasant to use and optically perfect. The HCam adapter is top notch, strongly built (which is a necessity when dealing with lenses like the Otus), and very precise and easy to adjust. As you have seen, paired together, you will be able to tilt the camera 10° with almost zero vignetting, unless you add a good amount of shift with it (about 5mm each way with the 28mm or 7mm each way with the 55mm). You have probably noticed that it’s also very easy to control the width and position of the focal plane, and that if pushed to the maximum (Master TS tilted at 10° aperture set to f1.4), you can make it extremely shallow!

As a conclusion, the Otus lenses are unique, because of course of their optical quality, but also because their wide image circle make them perfect tools for fine art still photography, and not only for video. They leave you quite a lot of freedom to unleash your artistic vision. Using the ZEISS Otus lenses and the HCam Master TS adapter on my Sony a7RII is the most exciting experience I’ve had with gear and artistically speaking in a very long time.

 

  • Gear:

You can find any of the gear mentioned in this article through the links below:

HCam Master Tilt Shift

Nikon mount 55mm f/1.4

Nikon mount 28mm f/1.4.

Sony a7RII

Sony RX100 IV

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Building a technical camera – Part IV

20150322_130154Step Four of Building a technical camera: adding left/right shifting to the back element

Last time, I showed you the results of milling out a chunk of the back element of the Fuji camera. Today, I’ll show you why I did it, and how to mount different parts together and insure they are perfectly parallel or perpendicular to each other.

For that particular step, I bought a cheap Chinese precision rail system on eBay. For $8 USD, it’s hard to get a better system that can be modified, drilled, cut or tapped. The following picture shows you exactly what this part looks like before modifying and mounting on the camera.

DSC01151First step was to take apart the rail itself (with the screw sticking out of the slot), from the support piece that is originally meant to attach on the tripod head. In the final design, the parts will be flipped: the rail will become the support (attached to the camera, see below) and the other part with the precise movement knob and the stopper. The latter part will be modified so I can attach a support plate for the camera.20150404_192705

You will find below a few pictures that I shot while adjusting the rail to the camera so that these two part are perfectly perpendicular to each other. This step is very delicate, because the slightest misalignment between them will lead to the sensor plane not being perpendicular to the lenses, effectively creating unwanted tilt. 20150404_192717

To make sure the parts were perpendicular, I used the precision of the milling machine and an indicator, see below:

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Just so you have a better sense of what things will look like eventually, here is a photograph of the back element with the inverted support part that I’ll drill and tap in order to mound the camera standard:20150404_193117No a few photographs of the camera with the rail system, where you can see how left/right shift will work:

DSC01173 DSC01171 DSC01164 DSC01160 Next step:

Drill the rear standard support (part with the two knobs in the pictures higher).

Conclusions:

1/ this was one of the most delicate but easiest steps so far. Easiest when you have the right tools, but these are hard to come by and even harder to let a machinist let you use his toys 🙂

2/ I found a solution to add rear swing (left/right tilt) by ordering a precise optical rotating stage for about $80 USD from China. I’ll give you the details in a later post if you are interested (please use the comment below if so). I’ll first work on a prototype that won’t have swing, see how it goes and then add the rotating stage.

Building a technical camera – Part I

$_57Fuji GX680 III basic body with rear and front elements and bellows. Missing lens, film back and viewfinder.

Step One of Building a technical camera

I have a new project: the ultimate DIY camera fun.

After much discussion with my buddy Satoru Murata, I decided to take on a project for the next few weeks. I will share with you some of the steps I will take into building a technical view camera… of sorts.

For those who are not familiar with such cameras, you can find a description here and a sketch below: http://en.wikipedia.org/wiki/View_camera

In a few words, this camera is made of a front board which holds a lens, and bellows that ensure the image coming from the lens goes without interference to a back element containing film or a digital sensor (there are also other types of capturing media but no need to go into such details here). What makes this type of camera special is the ability to move the front (and back) element in order to obtain large amounts of tilt and shift.

If you have been following me for a little while, you know that I use tilt and especially shift in my work, and sometimes using such special lenses in particular situations (for instance when you find yourself very close to the subject). For those who are into technicalities, another limitation of regular modern style T/S lenses is that movement happens at the front of the camera and not at the back. Back movement is however preferable because moving the front element changes the position of the image circle, and it usually is better to tilt (in particular) the rear element rather than the lens in order to avoid such changes in image circle position.

Now, you also now that I use Sony cameras for my work, as well as different sorts of lenses, ranging from modern and old Full Frame lenses to 30-ish years old Medium Format lenses (and I even also do Large Format film for fun). All these lenses are great, and MF provides a larger image circle, meaning that I can do larger movements than with FF lenses. Unfortunately, none of the adapters available on the market allow for full access to the MF lenses image circle, and some of them simply cannot be used, period (such as Mamiya RZ67). It is also impossible to use LF lenses on modern FF or MF dSLRs and backs.

So here is the idea: build a technical camera that will let me mount ANY (and I insist on ANY) lens (FF, MF, LF) on a modern digital FF mirrorless dSLR or MF back, and give TILT and SHIFT movement both at the front and back elements.

After some research online, I found that people can hack a Fuji GX680 body into doing something like this.

So I present you a new member in the family: a cheap (~$200 USD) Fuji GX680 III body which I will start stripping off its different elements in order to keep only the base body and moving elements.

$_573245Next steps to come, after I removed all the unnecessary parts! 🙂

On a different note, I’ll need to find this camera a name after it’s finished… let me know if you have suggestions! 🙂

Direct from the Sensor: One in three T/S LE…

Here is a picture that I shot today at the Christian Science Center in Boston.

It is one of the three tilt shift long exposures (more than 3 minutes each) that I shot and will stitch together to get the whole scene. I kept the exact same adjustments for all three, except for shifting them up and down to prevent any distortion (converging lines caused by tilting the camera sensor plane up or down).

I also tilted the lens (to the right) so that only the building to the center left is on focus, the rest getting blurred the further it gets from it.

Keep an eye out for the stitched raw image… hopefully some time soon 🙂

One in three