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07-26-2016, 10:22 PM   #346
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QuoteOriginally posted by eliphas Quote
Did a search in the thread and don't believe I found any info on the Sigma 18-35mm f/1.8 DC Art on the Pentax K-1 (i DID someone talking about a 17-35 sigma though, unless that was an error)
Any first hand experience? I suppose it too won't be usable at 18mm in FF mode right ?
I have the Sigma 17-35... it's an old lens for full frame.
Sigma 17-35mm f2.8-4 EX Aspherical Lens Reviews - Sigma Lenses - Pentax Lens Review Database

It's soft wide open.. usable when stop down.

07-28-2016, 12:51 AM   #347
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QuoteOriginally posted by pinholecam Quote
Samyang 14/2.8 is already very good in practical use.
Agreed, I have shot some of my best Landscapes with the Samyang. However the Sunstar pattern is quite Mid-Fi on it. This is why I invested in a DFA-15-30, and am interested in the Louwa 12mm, since that too has a nice starburst pattern.
07-29-2016, 02:00 AM   #348
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Tamron 20mm f/2 Di VC USD


Last edited by banep; 07-29-2016 at 02:20 AM.
07-29-2016, 02:59 AM   #349
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I wonder how good old, cheap, tiny, K 24 / 2.8 performs on a K-1. I have read not too good on A7r, though not bad either. So, I am curious about the K-1. Has anyone tried it?
Cheers

07-29-2016, 07:00 AM - 7 Likes   #350
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I have returned from my trip around England and Ireland, and the DFA15-30 got an absolute hammering. Yes, it's big, and heavy, and doesn't take filters, but it just kept producing excellent images.


Cloisters


The Great Hall


Soft and hard


Sunset in Marazion


The guardian of the circle


Stonehenge 3


Pulteney Bridge, Bath


Ford 2


Footings


Arrival


Castle and steeple


Family plot


Trinity library 2
07-29-2016, 01:16 PM   #351
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QuoteOriginally posted by Sandy Hancock Quote
I have returned from my trip around England and Ireland, and the DFA15-30 got an absolute hammering. Yes, it's big, and heavy, and doesn't take filters, but it just kept producing excellent images.
Very nice set of images, thanks for sharing. There isn't much argument about the quality and range - just the size and weight of the lens

I have just had a very similar experience with the DA 20-40mm Limited with APS-C K-3, where I have posted a review - although it clearly it is not nearly as wide as the 15-30.

Thanks for the data point on the 15-30, that is really useful information

Ross
07-30-2016, 06:46 AM   #352
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QuoteOriginally posted by vrolok Quote
I wonder how good old, cheap, tiny, K 24 / 2.8 performs on a K-1. I have read not too good on A7r, though not bad either. So, I am curious about the K-1. Has anyone tried it?
Cheers
I am still on the fence on it.
I've seen decent days and bad on my lens which leaves me puzzled.
I suspect it has to do with field curvature and infinity focus (esp the inability of the side to get far enough in focus due to field curvature)

One thing I am sure, its better than the results of the A7r (I've been passed samples before).
The thick filter stack of the A7 series of cameras does affect old wides (even SLR ones).
It even affected the K24/2.8 on the edges for the A7, and got much better when I sent the sensor for thin filter modification.


This is a test shot that I did for comparing composition adjustment between a 24mm and 28mm (to see what rough gain the shift gives to a 28mm lens wrt 24mm)



I also left the full size image on my Flickr here: Shot at f11
https://www.flickr.com/photos/29329237@N07/27965401263/sizes/o/

You have to judge if it meets your needs.

IMO, I already have the lens, rather cheap and long paid for in lots of photos on other cameras, so I think I will continue using it.
Decent enough IQ (I only need to nail down why the edge inconsistency so far in my usage).
Furthermore, if its downsampled to 24mp, most of the edge issues are not really visible and the same of little better than on my 24mp A7 (modded).
No matter, its also smallish and a nice punch to images, so to me such things are seldom just black and white.

Eventually, I might also get the new DFA wide on the roadmap for 2017. (IF its either 21,24 or 25mm and has excellent IQ for landscapes)
07-30-2016, 07:07 AM   #353
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Thank you pinholecam, much appreciated. I am looking forward to play with my old glasses using a soon-to-come k-1.

08-28-2016, 01:56 PM   #354
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QuoteOriginally posted by cdurfor Quote
Just picked up a Pentax FA20mm f2.8. Ready to sell my Pentax K24mm f2.8. Anyone interested, message me...
Can I ask where you got the Pentax FA20mm f2.8? I haven't been able to find one. Thanks
08-29-2016, 12:56 PM   #355
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FA 20/2.8





A 24/2.8



08-30-2016, 12:20 PM - 1 Like   #356
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I've used the 15-30 a few times now and it's looking great.
Here's one from Sunday at the Black Canyon (quick tablet edit because I'm traveling)
K-1 & 15-30


For when I don't mind bringing a big lens it's perfect. For when I need to travel lighter I take the Rokinon 14 instead.
10-18-2016, 02:13 AM   #357
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I just got my Samyang 20mm f/1.8. Lucky me I will have time in November to go for my passion photography much more than the last months. I will do a short non-scientific comparison between the Samyang 20mm, the smc Pentax M20 mm f/4, the DA* 15mm limited in crop mode and the smc FA* 24mm f/2, will post my findings here as soon as I have time and the weather is OK again in Austria for a hike.
10-18-2016, 08:56 AM   #358
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QuoteOriginally posted by infoomatic Quote
I just got my Samyang 20mm f/1.8. Lucky me I will have time in November to go for my passion photography much more than the last months. I will do a short non-scientific comparison between the Samyang 20mm, the smc Pentax M20 mm f/4, the DA* 15mm limited in crop mode and the smc FA* 24mm f/2, will post my findings here as soon as I have time and the weather is OK again in Austria for a hike.
I would love to see a comparison!
Where can the Samyang 20 1.8 be purchased? I am really struggeling to decide between the M 20 f4 and the Samyang 20 1.8.
10-18-2016, 12:51 PM   #359
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QuoteOriginally posted by Interspieder Quote
I would love to see a comparison!
Where can the Samyang 20 1.8 be purchased? I am really struggeling to decide between the M 20 f4 and the Samyang 20 1.8.
I can fully understand this! The story of my Samyang copy is fun: I contacted the manufacturer, they told me that they don't know when the first shipment would arrive in November, but told me it is for sure not before November 3 (the day my flight is booked for my well deserved vacation). However, they gave me the contact of the main distributor in Europe, and they also told me that it's not available. However, on a famous price comparing portal in Austria, the lens was listed, but only with one reseller in Germany. I just contacted them (Ihr Spezialist im Fotosektor | Digitfoto.de) because I thought this was a mistake - officially there is no single copy in Europe yet - and they told me they have it on stock. Now I have this lens.

My first impression is: wow! Seems like it's quite resistant to flare and very sharp. However, it's by far not as pocketable as the M20 f/4. Details will follow...
10-19-2016, 06:18 AM - 1 Like   #360
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QuoteOriginally posted by vrolok Quote
I wonder how good old, cheap, tiny, K 24 / 2.8 performs on a K-1. I have read not too good on A7r, though not bad either. So, I am curious about the K-1. Has anyone tried it?
Cheers
Here's something I shot last weekend with the 24/2.8. What do you think?
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