Using Enlarging Lenses with a Focusing Helicoid on Sony NEX

Unlike projection lenses, enlarging lenses have sort of a "standard" mount.  Most of them have a L39, or 39mm thread mount at the rear.  This is a good thing, because L39-M42 adapters are widely available and very cheap.  If the helicoid you have has an M42 mount on both ends, that's all you really need, if the focal length fits your helicoid.  The majority of helicoids on the market have this configuration and it makes a lot of sense.

Here are the reason why I chose something different: the helicoid with a M42 mount, and 52mm opening: 1. Some of my lenses have very large rear openings and 42mm is not large enough to accept the lens, and a 52mm opening gives me a better chance that the lens would fit.  2. I choose the M42 mount because it's interchangeable.  You can buy the helicoid with specific mounts like NEX E-mount, M43 mount, or Canon EF mount, etc.  With an M42 mount, I can use this helicoid on more than one camera system (I have NEX, M43 and EOS mount cameras), by simply screwing the helicoid onto an M42 adapter, or a c-mount adapter with M42 inner threads.  It has its compromises, of course.  For one thing, when used with enlarging lenses, I would need a M42 to 52mm step-down ring.  This would increase the thickness of the helicoid by about 3mm.

The picture below shows how I normally connect the enlarging lens to my camera.  For this particular lens (Rodenstock 50mm f2.8), it works almost perfectly, infinity focus is just slightly beyond infinity.  So, what happens if your enlarging lenses are longer than 50mm?  Very simple, just add 52mm filter rings.  The last picture shows an 80mm enlarging lens with 3 filter rings added to compensate for the longer focal length.  For very long lenses, like 150mm, it's better to buy a longer helicoid, or use extension tubes instead of filter rings.

It maybe worth mentioning that the c-mount to NEX adapter with inner 42mm thread is now hard to find.  So, it maybe be better to buy a helicoid with the mount of the camera you are using it on, instead of an M42 mount.

How the pieces are put together. Click for larger.

All connected.  In real life, the labels won't line up nicely like the picture. Click for larger.

Mounted to the camera.  Click for larger.

With extension rings (filter rings) for longer lenses. Click for larger.

Review: Yeenon 18-33mm Focusing Helicoid

If you read my blog for any length of time, you would know that I am a big fan of DIY lenses.  Projection lenses, enlarging lenses, odd ball lenses are my past time favourites, and all these lenses need a focusing helicoid, as the lenses themselves do not have a focus mechanism.  My first focusing helicoid was a converted Vivitar 2X Focusing macro teleconverter, which I wrote about it here. But, this home made helicoid is too thick (long) for wider angle lenses, so a thinner helicoid is needed.  I ordered two generic ones from eBay: a 12-17mm and a 17-32mm, which I covered here.  These two are widely available on eBay from many sellers, but they are essentially identical.  Typically they are selling for about $40 each, much cheaper than the time I bought mine. Sadly, they are very badly made.  Even when new, they have some play between the focusing and the mount. After only a few months of use, they have become wobbly, and pretty much unusable.  I did get a lot of use out of them, so it's not a total write-off.  I began searching for a better replacement, but couldn't force myself to forking out more than $100 for a different one.

There are basically four different makes of helicoids readily available on eBay.  They are: the generic ones that I bought and bad quality; one from Hawk Factory in Taiwan, which has good reviews, but at about $130; one sold by Fotodiox at $120, and the other, which I bought and I am reviewing, is a Yeenon 18-33mm, at $57 (free shipping if you offer to pay the asking price on eBay).  I chose the M42/52mm version, so that I can use it on NEX, Micro 4/3, and Canon EOS through the M42 adapter.

The Yeenon helicoid took exactly one month to arrive from China.  It came with a (relatively) nice box, and even a guarantee.  I could feel the difference in built quality as soon as I held it in my hand.  Much better than the generic ones I bought.  The Yeenon is slightly larger in diameter.  This has a negative effect on the NEX-5N, as the focusing ring touches my middle finger that grips the camera, while focusing. Also, there is still a very slight play between the focusing and the mount, just enough to feel it.  It's not a big deal, but nevertheless lessens the joy of using it. The focusing is relatively smooth, but a bit too much resistance.  I am sure with use, it will loosen up.

So far I have only used it for a week, but I enjoy it much more than the ones I had before.  It's not as good as the Vivitar 2X focusing helicoid, but very close.  I just hope that the build quality will hold up and last more than a few months.

The Yeenon 18-33mm helicoid. Click for larger

Face Off - Left Yeenon 18-33mm; right generic 12-17mm. Click for larger

Side by side. Click for larger

Intense colours - NEX-5N & Schneider-Kreuznach Componon-S 80mm f4. Click for larger.

Symphony of colours - NEX-5N & Schneider-Kreuznach Componon-S 80mm f4 @ f5.6

Sunset at Port of Toronto

We have been having a lot of rain the last few days, but yesterday evening we saw a beautiful sunset, which is a treat.  More rain is expected in the next few days, thanks to Hurricane Sandy.

Sunset at Port of Toronto - NEX-5N & Wollensak Raptar 50mm f1.5. Click for larger.

A Bit of Good News

Early this week I emailed Sun Camera in Vaughn and asked if they still repair the Canon EF 200mm f1.8L, and they said they still repair this lens.  So, today I packed the lens and was ready to drop it off at their repair centre.  On my way out, I thought, let's try it one more time.  Mounted the lens on the 1D III and when I turned the focus ring, it moved!  I then tested the AF and it also worked.  I don't know how the lens just healed itself but I don't care.  This has really made my day.  I can use my favourite lens again.

Sally - Canon 1D Mark III & EF 200mm f1.8L @ f1.8. Click for larger.

Bicycles in Toronto

Torontonians love bicycles.  If you live downtown Toronto, you will see bikes are parked everywhere on the sidewalk.  Some streets, like lower Spadina, you can see hundreds of bikes locked next to each other.  We also have dedicated bike lanes on some streets, which provides safer routes for cyclists.  Too bad there aren't enough bike lanes.  

Some of us bike to walk all year round, even in the winter with windchill at -20c, or in the snow.   Some think we are crazy, but it's not as bad as they think, as long as you dress for it.  The benefits are obvious: good exercise, save money, and reduced carbon footprint.

Cyclist - Canon Rebel XSi & EF 50mm f1.2L @ f1.2. Shot through car window. Click for larger.

The Ken Rockwell Reviews and the Nikon AF-S 24-120mm f3.5-5.6 VR

If you are around the photography community for the little while, no doubt you would have heard of Ken Rockwell.  Some of us remember the controversial "reviews" that he did and had some good laughs.  Ken back then (not sure if he still does now), would write reviews without actually having any of the products he reviewed on hand, and did it basically from spec sheets.  For this reason, many people do not trust his "reviews" or take them seriously.

The other day I was searching for information on the Nikkor AF-S 24-120mm f3.5-5.6 VR lens, and found Ken has a review for this lens, and he listed it as one of the 10 worst lenses.  Basically, as he puts it, this lens is so soft it's good for only 4x6 prints.  There are no real images from this lens on his review (I mean, can you really review a lens without providing sample pictures, especially when it's so bad?)  On the other hand, he praised the Nikkor 18-200mm VR lens as "life changing", and we all know that the 18-200mm VR lens does not win any awards in the sharpness department.

I shot with this lens today on the ancient D70, and I could not disagree with him more. For sure, it's a slow lens, just like the 18-200mm VR is, and is meant to be a convenience lens that you take with you on vacations, casual shooting, family pictures, etc.  I am not saying this is the best and sharpest lens is the world, but it's designed with a compromise, just like the 18-200mm VR is.  I highly doubt the optical quality is any different between the these two lenses.  From the pictures I have got from the AF-S 24-120mm f3.5-5.6 VR, it's a decent lens.  Nothing like it's only good for 4x6  inch prints.  In fact, I have not used any lens that bad in my life, however cheap they are.

I highly doubt Ken used this lens more than once and probably just shot a few pictures indoors, otherwise why is there no sample pictures in the review, and there are samples for the "life changing" 18-200mm VR?  If you are considering this lens, I would suggest actually borrow/rent one and decide for yourself.

Nikon D70 & AF-S 24-120mm f3.5-5.6 VR, 120mm @ f6.3. click for larger.

Nikon D70 & AF-S 24-120mm f3.5-5.6 VR, Wide Open at 120mm @ f5.6. click for larger.

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100% crop from picture above.

Nikon D70 & AF-S 24-120mm f3.5-5.6 VR, at 62mm @ f8.

100% Crop from previous picture.

Why I Slow Down Camera Body Upgrades

For a lot of people, they would upgrade to the latest camera bodies as soon as they are available.  I am guilty of this in the past to some degree, but I have now slowed down the upgrade intervals.  There are a couple of reasons for this.

In just a bit longer than a decade, the sensor in the consumer digital camera has matured with frightening speed.  It's unimaginable just a decade ago that today's sensor is capable of such high resolution and low noise.  But, the last couple of years, advances in image quality has been incremental.  The resolution of around 16MP is more than high enough for most uses, and ISO 6400 is surprisingly usable.  Cameras now can last two to three years and are still very usable compared to the new cameras. So, where do you spend the money allocated for photography?  I would suggest lenses.

In film days, we would say that cameras are just a light tight box.  It's the lenses that make the images. It's still true today.  Camera bodies retire at a much faster rate than lenses.  How many 10-year-old digital cameras do you see people use?  Hardly any.  Lenses are entirely different. I see lenses as an investment, though not entirely in financial sense.  I have gone through many Canon bodies, but my Canon lens collection has hardly changed; some of the lenses are more than 20 years old.

True, many people buy cameras not based on image quality, but other factors, such as size, weight, and other features.  Manufacturers know this, and will never make a "perfect" camera.  there are always features that you want, but lacking in the latest camera, and one of these features will be in the next iteration.

Reflection - Canon 1D Mark III & EF 200mm f1.8L @ f3.2.

Prelude to Halloween

Halloween is just around the corner.  Some houses/shops are decorated for the occasion.  There are some very creative individuals who spend considerable amount of time and money to show off their talents.  My older kids don't go treat or tricking any more, but the younger ones are eagerly waiting for the day to come.

Say Cheese - NEX-5N & Carl Zeiss Planar 50mm f1.4 HFT

OT: It Takes a Real Man to Cry

I have been following obakesan's [Chris] blog for a long time.  The articles are always thoughtful, thorough, and have good content.  But lately, after the untimely passing of his wife, he has written many heart warming, thought provoking essays on coping with the loss of loved ones.  They are helpful not just for releasing his own grieves, but will also be immensely helpful for others in the same situation.  Too many people, especially men, have locked up their feelings inside, fearing that being emotional is a sign of weakness.  This could lead to tragic endings.

I lost my father due to lung cancer.  He was a heavy smoker until two years before his death. He tried, but could not quit smoking.  When he finally succeeded, it was too late.  Dying of cancer is one of the worst ways to end one's life.  It was painful and anguish to see a person full of life and vigor slowly getting weaker, helpless and finally wittered.  In so many ways, a sudden death would have been a blessing.  

My father and I were not very close, as I grew up with my mother and I didn't see him again until I was 16, but I always corresponded with him in regular intervals.  No, my parents were not divorced, but they were separated, not in legal sense, but physically.  My father left China when I was very young, and we didn't re-unite in Canada until I was 16.

I was confused upon my father's death.  I didn't know how I was supposed to feel.  I felt sad, but not overly so and I thought I would have forgotten him very soon.  This is just not true. In fact, I thought about him more now than before.  At times, I even felt like crying. Fortunately, my wife and I are very close and we talk to each other about this often.  It has been a great help to me and I am very thankful to have someone to discuss our inner feelings.

It takes a real man to cry and talk about his emotions.  I know Chris will live his life to the fullest, because he is taking steps to recover and heal.  Losing someone does not mean you have to stop and forever morn the loss and be trapped in it until the end of time. For sure, we will be reminded often of the loved ones we lost, but it should bring back happy memories which add to the richness our lives. It's part of life's journey, knowing that life would have been far worse without those memories we shared with loved ones.  So, open up. Cry if you have to, and talk about it, but don't keep the grief inside you.

Guildwood Park - October 2012

Yesterday, Sally, Lisa, Dillon and I went to Guildwood Park to shoot the autumn colours.  Guildwood Park is one of my favourite places photograph in the fall.  We also went there last year and thoroughly enjoyed it.  In addition to the 200mm f1.8L, I brought a lot more equipment this year, including the 70-200mm f4L IS that I traded the 70-200mm f2.8L IS for, and never really used it, and the NEX-5N with the Wollensak 209mm f4.5 copy lens.

As usual, the 200mm f1.8L did not disappoint, but sadly, it's now broken, and may never be working again. The 70-200mm f4L IS is fantastic.  I actually like it more than the 70-200mm f2.8L IS version.  It's a lot sharper wide open and the IS is very effective.  Due to the dim lights in the woods, I shot most pictures either wide open or 1/2 a stop down.  If you don't need f2.8 for the popular zoom range of 70-200mm, I would suggest the f4L IS.  Well worth the money, and much lighter and easier on your body (and wallet).

More interesting is the comparison of the Wollensak 209mm f4.5 and the Canon 70-200mm f4L IS at 200mm.  The Wollensak was shot on the NEX-5N and you can see the very significant colour and rendering differences between the two lenses.  The NEX-5N and the Wollensak has a lot less saturation and contrast, where the Canon is the opposite.  I can't remember, but the lighting might be slightly different as the sun was doing hide and seek.  Aside from the colours, the bokeh is night and day too.  This shows how, despite the similar focal length, pictures can be vastly different between lenses; each has its own characters.  Which one you like is a personal preference.  For black & white photography, I think the Wollensak will be excellent.  

Young Tree - NEX-5N & Wollensak Raptar 209mm f4.5 Copy Lens. Click for larger.

Young Tree - Canon 1D Mark III & EF 70-200mm f4L IS @ 200mm f4. Click for larger

Bokeh - NEX-5N & Wollensak Raptar 209mm f4.5 Copy Lens. Click for larger.

Bokeh - Canon 1D Mark III & EF 70-200mm f4L IS @ 200mm f4. Click for larger

Fallen Leaf - Canon 1D Mark III & EF 70-200mm f4L IS @ 200mm f4. Click for larger

Reflection - Canon 1D Mark III & EF 70-200mm f4L IS.