Industar 69 28mm f/2.8 M39/L39 on Sony NEX 5N

2011-12-14 Posted by Hin Man
Industar 69 28mm f/2.8 pancake M39/L39 on Sony NEX 5N
Industar 69 28mm f/2.8 pancake M39/L39 on Sony NEX 5N
Industar 69 28mm f/2.8 pancake M39/L39 on Sony NEX 5N
It is not the best lens on the NEX system but likely the thinnest on a tight budget. It is a Russian made Industar 69 28mm f/2/8 pancake in M39 mount

#1
Industar 69 28mm f/2.8 pancake M39/L39 on Sony NEX 5N1/30 sec, f/2.8, 28mm, iso 3200, -1 Ev, hand-held, straight jpg, PP in LR3


#2
Industar 69 28mm f/2.8 pancake M39/L39 on Sony NEX 5N1/13 sec, f/2.8, 28mm, iso 3200, -1 Ev, hand-held, straight jpg, PP in LR3

#3
Industar 69 28mm f/2.8 pancake M39/L39 on Sony NEX 5N1/25 sec, f/2.8, 28mm, iso 3200, -1/3 Ev, hand-held, straight jpg, no PP



On the lens, there is a extra ring and I happen to need to take the extra ring out so that I can use my NEX without issue -- I still don't quite know what the extra ring in the rear is used for. It is likely an adapter between M39 to LTM/L39. On the L39 to NEX adapter, I happen to need to re-adjust the three mounting screws in order to align the lens right with focusing scale.

I have to use it more and report back on its performance. So far what attract me most about this lens is the pancake thinness and its small size of a 28mm prime. I am not sure if a 25.5mm filter size or cap will fit, I will report back when I have found the cap and hood size that fit this pancake.

There are other users complaining on infinity focus and requirement of modification. Contrary to what I have heard from others, I can use this lens without any modification except removal of an extra ring on the rear of the lens.


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Pentax Auto 110 70mm f/2.8 on Sony NEX-5N

2011-12-09 Posted by Hin Man
Pentax Auto 110 70mm f/2.8 on Sony NEX-5N
I have done few test shots on the 70mm f/2.8 wide open on my Sony NEX-5N. This lens is sharper than both the 18mm and 24mm. But I do see some very weird vignette on one side of the picture when oriented in portrait shooting but it only shows up vignette in very bright sunlight shooting when shutter needs to go to 1/4000 sec in ISO 100. All are shot wide open as I don't yet have any mechanics to stop down.
#1 Off focus shot
to see light ringed bokeh
Pentax Auto 110 70mm f/2.8 on Sony NEX-5N
#2 24 Hour Fitness at night
Pentax Auto 110 70mm f/2.8 on Sony NEX-5N
#3 Hiking Trail -- no vignette in landscape
Pentax Auto 110 70mm f/2.8 on Sony NEX-5N
#4 Portrait with vignette on right side -- some
light adjustment already in PP
Vignette happens in high shutter in 1/3200 sec
Pentax Auto 110 70mm f/2.8 on Sony NEX-5N

#5 Low Shutter shots have no vignette issue
Pentax Auto 110 70mm f/2.8 on Sony NEX-5N

#6 Another Vignette Shot -- no PP
Vignette happens in high shutter in 1/3200 sec
Pentax Auto 110 70mm f/2.8 on Sony NEX-5N
More in this Flickr Set

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Beautiful Coffee with Tamron SP 17mm f/3.5 adaptall-2 (51BB)

Beautiful Coffee with Tamron SP 17mm f/3.5 adaptall-2 (51BB)
I was testing my lens in the coffee shop that I usually go near the farmer market on Sunday morning. And the staff fixed me up with a better looking coffee


#1 My first cup
Beautiful Coffee with Tamron SP 17mm f/3.5 adaptall-2 (51BB)

#2 The staff
Beautiful Coffee with Tamron SP 17mm f/3.5 adaptall-2 (51BB)
He said it in a distance that I needed a better coffee


#3 The unexpected 2nd cup from the wonderful staff
Beautiful Coffee with Tamron SP 17mm f/3.5 adaptall-2 (51BB)


#4 My best looking coffee
Beautiful Coffee with Tamron SP 17mm f/3.5 adaptall-2 (51BB)


It tasted so good and I didn't even know what it is. It was likely a Mocha, I sat there in Bay Coffee not wanting to finish the lovely Mocha with a beautiful face. And the story warmed me up with smile and giggles all weekend. Thank to the wonderful staff of Bay Coffee.
And darn it, I wish I had better picture for the close up. I have sold and bought back my 2nd copy of Tamron SP 17mm f/3.5 adaptall-2 (51BB). I sold the earlier version with 51B that has a built in sets of optical filters and I later regretted it and bought a sibling copy with 51BB. The lens works well with my Sony NEX 5N and the shots above were all taken with my Sony NEX 5N.
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Konica Hexanon AR 40mm f/1.8 Pancake on Sony NEX 5N

2011-12-05 Posted by Hin Man
Konica Hexanon AR 40mm f/1.8 Pancake on Sony NEX 5N
I just got my Konica Hexanon AR 40mm f/1.8 pancake. Its size is almost like the Sony E 16mm f/2.8 pancake. However, it is a bit of disappointment as the Konica AR to NEX adapter makes the pancake appeal quickly disappear as soon as I mount the lens on the adapter.

Konica AR 40mm f/1.8 Pancake on Sony NEX 5N
Lens is extended to longest end as it reaches 0.45 meter
minimum focusing point
it should be smaller at infinity focus point

However, the lens is still a reasonable sized and performance is good for its lower cost of ownership. The Olympus Pan F 38mm f/1.8 will be a much smaller setup due to smaller adapter. Image quality may be better in the Olympus Pan F lenses but the cost is probably 3-5 times of the Konica pancake.

I did some casual snapshots in the weekend with Sony NEX 5N. Handling is quite good in the focusing ring. And I have a lens hood fit for the 55mm odd filter size. Wide open shots has a glow but when stopped down to f/2.8 and smaller, the glow don't seem to bother as much. I shot most of the snapshots in f/5.6.


#1
Konica AR 40mm f/1.8 Pancake on Sony NEX 5N

#2Konica AR 40mm f/1.8 Pancake on Sony NEX 5N

#3
Konica AR 40mm f/1.8 Pancake on Sony NEX 5Nin f/1.8


#4
Konica AR 40mm f/1.8 Pancake on Sony NEX 5Nin 16:9 wide


#5
Konica AR 40mm f/1.8 Pancake on Sony NEX 5Nin 16:9 wide


Impressions & Notes
  • Lens is small and lightweight. It is similar in size to the Sony 16mm f/2.8 pancake.

  • Size of the Konica AR to NEX adapter is smaller than other SLR type of adapters but it is still quite big and once the lens is mounted on the adapter, all the pancake appeal will diminish a bit if size is what you are after

  • In real use in the field, the lens has good performance for its low cost. The one thing I notice is a glow on details when the lens is shot wide open. When I stopped down the lens a bit to f/2.8 and smaller, the glowing edges of fine prints in test pictures seem less obvious

  • The lens aperture stops are in full stops but I can still engage the aperture in between stops.

  • I especially like the focusing ring for ease of focusing

  • A good lens hood is recommended for this lens to have better control over flare


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