Showing posts with label sigma. Show all posts
Showing posts with label sigma. Show all posts
This blog entry is the third and final review on the Sony a7 III with the MC-11 adapter.  Read to the conclusion for a surprise ending.

The testing continued on the a7 III by taking the camera to the Greensboro Science Center in Greensboro, NC.  The local chapter of the CNPA (Carolina Nature Photographers Association) had an outing at this location, so why not end the testing at this location and later shooting songbirds.

Without a doubt this series, with the exception of the Canon 7D Mark II, has been the largest review on gear I have ever undertaken.  Thousands of images, hours of post processing, and wading through all my logical as well as illogical conclusions were all part of the process.  

Arriving at the Greensboro Science Center, we had a brief time of socializing in front of the building and then we were whisked off by our guides to photograph the animals.  The Science Center is not a huge facility, but they do have some interesting animals that you might not find in other locations.  One animal they have is the maned wolf.  This wolf is a solitary wolf found in South America.  He eats small rodents and even vegetation as part of his diet.  They are also in a large enclosure which means I can test different modes and techniques without my subject running off.

I started out photographing this animal using the single point expand autofocus option with lock-on, just as I had before.  However, I noticed that with the maned wolf, the autofocus wanted to grab focus on the nose of the wolf.  It is important that you use a single point when photographing animals with long noses.  This is how I would have photographed them when using my Canon 7D II, but I wanted to see just how smart the camera was.  Note that according to Sigma customer service, animal eye detect is not fully supported with the MC-11.  Just with any camera, it really comes down to knowing which autofocus mode to use for a given situation.  Below is an image I took of the maned wolf.

Maned Wolf - Sony a7 II, Sigma 150-600C, MC-11, 600 mm, ISO 2000, 1/200th
Here, lock-on mode worked.  I think mainly this was due to the eye being more prominent and easy for the lock on to follow. The nose being off to the left slightly also helped.

A few days later, I was back to photographing songbirds and that is where I will end the testing.  By now in the testing, I was really getting the hang of all the button locations and quirks of using the Sony.  Below is an image of a mourning dove using single point expand without lock-on.

Mourning Dove Before a Storm - Sony a7 III, Sigma 150-600C, 600 mm, ISO 1600, 1/400th

So, I hope this testing was helpful to you in some way.  I can tell you, that for me, it was fun and interesting to test out this fairly new beast, but I still have one question to answer.  Would I keep it? Wow, that is is a big question isn't it, and the answer for me was not an obvious one.  I wish I had a clear answer on it based on the testing, but one day I would say I was keeping it and the next day I wanted to return it.  

In the end, I had to look at my findings from a completely logical perspective. I couldn't base a decision on emotion or some reviewer online. So, in the end I decided to keep it and here is why:


  1. Canon offers no full frame camera at this price point with so many features, period!
  2. I can adequately use my Sigma 150-600mm lens via the MC-11.  It isn't perfect, but it will work good enough
  3. Focus peaking is a feature I will use all the time
  4. Great image quality, but not amazing
  5. 4K Video - I find myself dabbling in this more every day
  6. In body image stabilization
  7. Lock-on mode is awesome for moving subjects
  8. Animal eye detect with Sony lenses
  9. Silent shutter (do I need to say why I like this)
  10. Great low light performance

Is it as great as people say it is online?  No, it isn't.  Is it better than anything else at this price point?  Yes, it is and that is the bottom line isn't it?  If money was no object, I would have an a9 or a Canon 1DX Mark II.  It comes down to a personal decision based on what your needs are.  I have my own needs, just as you do.  I needed a full frame camera that can fill in the gaps in the Canon 7D Mark II.  It needed to have great low light performance at the least, since my Canon does not.

It is also important to note that I have no plans to abandon my Canon gear.  I have a great deal of time and money tied up in Canon products and I still think the Canon 7D Mark II has great image quality and the fact it is APS-C gives me the extra reach I need in many situations.  For the situations that my 7D II can't handle, I get out the Sony.  It is really that simple!  Even if I were to switch completely to Sony it would be at least two years until that happens.  My experiences with this camera will help mold that decision.


Again, I hope you enjoyed this series on the Sony a7 III.  Now, get out there and enjoy nature.









In essence this is the first of several entries to discuss the Sony A7 III.  Particularly, I will be writing about the A7 III with the Sigma 150-600 C lens attached via the Sigma MC-11 adapter.

For those who follow my blog, podcast and YouTube channel, you will know that I have been interested in Sony's line of mirrorless cameras for some time.  I have watched as each new camera launch ushered in a new age of mirrorless  technical features.




Having said all that, I am a Canon photographer.  I have a great deal of money tied up in lenses, flashes, bodies and other accessories.  For me to move to another system like Nikon would mean that I would have to replace everything.  However, that is not true when moving to Sony from Canon.  All I needed was a Sigma MC-11 converter and my Sigma lens could be used.  But, would it be that simple in reality?  That is what I am going to explore of the next several blog entries.

Initial Setup of the Sony A7 III

As with any new camera there are always configurations to perform.  I followed Sony's recommendations for wildlife photography.  They are pretty much as follows:
  • Set Focusing Mode to AF-C (Continuous AF)
  • Set Focus Area set to Flexible Spot 
  • Set Drive Mode to Continuous Hi (8 fps)
  • Set Image to Compressed Raw (uncompressed RAW will fill the buffer up too rapidly) 
  • Make sure the MC-11 Adapter Has the Latest Firmware
  • Make sure the 150-600 has the Latest Firmware
I saved these settings as "1."

Specifications

  • Megapixels: 24.2
  • Body Style: Magnesium Alloy
  • Autofocus:  Fast Hybrid AF (phase-detection/contrast-detection AF)
  • ISO: 100-51,200
  • Shutter Speed:  30 seconds to 1/8000
  • Viewfinder Coverage: 100%
  • LCD: 2.95 inch with 921,600 dots
  • Drive Modes:  Single, Continuous Hi/Hi+
  • Burst:  8 to 10 FPS depending on drive mode and compression
  • Battery: NP-FZ100 (610 shots)
  • Battery Charging:  Internal with USB cable / External charging available via a charger sold separately


Build Quality and Feel

Right away I noticed how much smaller the A7 III is when comparing it to my Canon EOS 7D Mark II.  My pinky actually dangles off the bottom of the grip. I did not find it uncomfortable though, and both 3rd party grips and a Sony grip can be purchased to make moving to a vertical easier.  The grip will also extend the battery life as it allows me to put two batteries in it.

I found the buttons, for the most part, to be well positioned.  I ended up making the AE-lock button into a back button focus button, since I always shoot with back button focus.  The one button I found hard to get to was the AF-On button.  It is positioned up against the right side of the viewfinder.  By the way, I should also mention that there are numerous buttons the body that can be programmed to whatever the photographer needs. One button I actually think I like better on the Sony is the shutter button, but I am not sure yet. 


Test #1 - Songbird Photography (Day 1)

The first test that any kit has to be able to do for me is to be able to quickly snap into focus when photographing songbirds in a setup studio environment.  I spend a lot of time photographing birds in this scenario and it is an absolute must for me.

In this test, the conditions were quite rough.  It was stormy and heavy cloud cover.  However, it turned out to be a good place to test low light conditions both from a focusing and high ISO perspective.  My ISO ranged from 1000 to 12,800. 


Cottontail Rabbit - High ISO at 12,800!!   The equivalent noise on my 7D Mark II in these conditions would have been 3200 or 6400.

During this test, the focusing of the camera seemed to be hit or miss.  At times it seemed to lock on fine and then suddenly would hunt all the way to infinity and back in a very very slow manner.  It was as if it was switching from phase detect AF to contrast AF and back again.  This was very frustrating to say the least.  On a scale of 1 to 10, one being the worst AF I have ever used and 10 being the best, I would place it at about a 5.  Had it not hunted on many occasions, I would have given it a 7 or better.  It is possible that the "Lock-on" feature will work better.  I have seen some thoughts to that effect online.  I will try that out on day two.


What I did find absolutely amazing was how great the image was at higher ISOs.  That is honestly something I am looking for in my next camera body.  When I am shooting a lens with a minimum aperture of 6.3, I need to have clean shots at 2000 ISO. Right now, with my 7D Mark II that is not possible.  So, I would give it a clear 10 here.  Sony is second to none in image quality.  Below are two test images I took on day one.  I did not have any bird images I thought passed the test on noise and quality.


Sony A7 III - Sigma 150-600 C - MC-11 Converter - f 6.3, ISO 1000, 600 mm, 1/1250, Some cropping done


Roughly 100% Crop of  Original without Additional Sharpening Applied (600mm)

I should also note that the menu system of the Sony is not nearly as complicated as people say it is. Maybe I am just good at navigating menus, but I thought it was quite intuitive and easy to use.  It is just like anything new.  You have to get used to it.

Test #2 - Songbird Photography Day 2 (A MAJOR BREAKTHROUGH)

With somewhat disappointing auto-focus results on day one, I changed my Focus Area strategy to use the Single Point Expand with Lock-on for day 2.  It turned out to be a huge boost to the AF performance.  Sony engineers, it would appear, spent a great deal of time perfecting Lock-on.  For this second day,  it was like shooting with a new camera.  I had increased my keeper rate easily by 75%, and it was actually fun to watch the focusing system stay with the bird.  I could lock on and recompose my images with the confidence that the focusing system would stay right where I locked on (in most cases).


Eastern Bluebird - Lock-on Engaged (this is the secret to using the Sigma 150-600 C) Focus and recompose was easy with Lock-on mode.

However,  the AF was not without issue.  I did notice that it wanted to grab the background on occasion and not let go.  In order to fix this, I had to manually focus back to the general area I wanted to focus in.  This was a disturbing problem, but with such a high keeper rate, it was hard blame the camera too much. After all, this is an adapted lens.  With a Sony native lens, I do not think this would be a problem.

Taking the images back for post processing, I was amazed at the detail of the images with standard AA sharpening applied.  They were sharper, for the most part, than anything out of my Canon 7D Mark II at 600 mm.  It should be noted that some of this was perceived sharpness due to being farther away from the subject and gaining more depth of field.  But, even so, it was a clear winner on sharpness.  Was it better than any other Canon product?  I can't say that for sure.  I think Canon has some amazing full frame sensors out there.  The win might go to Sony on this front as well.  The EOS R has a great sensor though.



100% Crop - Sony A7 III - Sigma 150-600 C - MC-11 Converter - ISO 1000



Common Grackle - Sony A7 III, Sigma 150-600 C, f6.3, 421 mm, ISO 2000, 1/1600

Day 1 and 2 Pros and Cons

PROS

  • Amazing image detail and sharpness even with higher ISOs
  • Single point expand with Lock-on blew my mind. 
  • Single point expand made it easy to focus and recompose even in AF-C (continuous tracking)
  • Shutter button was always easy to find and shoot with
  • Built in five way image stabilization
  • Great AF tracking when following birds from branch to branch
  • Easy to "clean up" images in post

CONS

  • Unable to use silent shooting due to distortion possible with moving subjects
  • To get good write speeds to the SD card, I had to use compressed RAW.  This gives up data such as high dynamic range.
  • Would like to see a 30 mp sensor size on such a new camera.
  • Seemed to focus much slower when using Non-lock on modes (with MC-11 converter).
  • Limited cropping in post due to 24 mp sensor size
  • AF would grab and hold the background and not let go on several occasions on each day





As many of you are aware, it is extremely easy to damage a long lens by bumping it while walking or just from banging around in your back pack. I think it only took about a month before I saw my first scratch on my Sigma 150-600 C lens.

I have been at locations where I was forced to shoot through a cut open fence. I have rested my lens on car windows and had them roll down steps, but what options are out there to protect your lens?

There are two main companies out there that are producing neoprene covers for your lens. The first, is LensCoat. LensCoat is a great company, and I actually own their blind. But, I felt like, perhaps the LensCoat was a bit pricey at 100 bucks for a 1,000 dollar lens. That led me on a search on Amazon to find a more inexpensive alternative. After searching for a bit, I came across a neoprene cover made by Mekingstudio. Yes, it is Chinese made, but honestly, for something like this I wasn't convinced that I needed a quality piece of "foam."


Click to view a larger image of the Mekingstudio Lens Cover


The order arrived at my workplace without issue.  Each of the pieces were numbered and are placed on the lens from the lens hood back.  The pieces went on pretty easy once I got the numbers in the right order.  It might take you a bit to figure it all out, but it's not a monumental task or anything.  

I have been using this product on my lens for about 6 months now and it works absolutely fine.  Now, I can rest my lens on a fence or car and not feel like I am scratching the lens.  The padding it provides is minimal, but it is enough to help cushion small blows and keep the lens from sliding around too much when using a bean bag support.  The only real complaint I have is it is hard to find the manual focus ring.  It was hard enough without the cover, but now it is much worse.  I suspect this would be the same no matter what cover I bought.  Perhaps they could add something to the outside of the ring to help find it.  Or, maybe you could even put a piece of Velcro there.


The other problem I found with the cover, is the plastic covering over the lens switches. Because it is so tight to the lens, it makes it a little bit more challenging to switch on image stabilization, for example.  Some may find this useful and not a con. It does protect the switches from water which is also nice.


In conclusion, It is my opinion, that you can't really go wrong with this product.  For only 39 dollars US it is a steal.  Click on the link above and order one today!  


PROS

  • Offers nice rubberized protection (neoprene)
  • Has not slid or fallen off
  • Offers a more comfortable grip when hand holding
  • Lens doesn't slide when using a bean bag support
  • Offers some water protection
CONS
  • Hard to find the manual focus ring (can't blame them totally for this)
  • Camo pattern is not a name brand like RealTree.  If they did that it would cost more, however. 
  • Plastic cover over the switches makes flipping the switches a bit more difficult
I recommend this product. Click here to order yours today!