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08-16-2018, 08:43 AM - 1 Like   #4186
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QuoteOriginally posted by pepperberry farm Quote
OK - now that I've had my K-50 for about four months, I'm ready to continue learning and expanding what I can do with it.... so....

I need a prime lens... and I have questions...

I have spent the last two weeks, absorbing as much as I can about primes - reviews, comparisons, etc...

What i want a prime for: portraits, landscape and as a walking around lens...

Is a 35 mm lens that much of a different view than a 50 mm? Is an aperture of f1.8 that much more noticeable in low light than an f2.4? Should I be looking only at autofocus lenses vs manual?

I've read from end to end the thread on old manual lenses and how great they are - but is it really just the 'neat' factor of using an old lens vs a new 'plastic fantastic'?

guidance, advice and criticism... all welcomed.....
I would go for a 2,8/50mm macro, well I did - on the crop that's a 75mm so good for portraits, but also details, landscape and compact enough for a "walking around lens". The thing about the 1,8/50 or the old 1,4 or 1,7/50 is, that you usually go down to at least f2.8 to get better results and to f5.6 to get the best - with the macro you are already ok to use it wide open.

08-16-2018, 08:59 AM - 1 Like   #4187
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QuoteOriginally posted by Martin G. Quote
I would go for a 2,8/50mm macro, well I did - on the crop that's a 75mm so good for portraits, but also details, landscape and compact enough for a "walking around lens". The thing about the 1,8/50 or the old 1,4 or 1,7/50 is, that you usually go down to at least f2.8 to get better results and to f5.6 to get the best - with the macro you are already ok to use it wide open.
thank you, Martin, for the advice...

if you'll take a look at the date of that first, you'll notice that it was some time and about two dozen primes ago...

the D FA 50 Macro is an amazing lens; I've had my copy for a few months now and it's now on my 'never sell' list...
08-16-2018, 09:03 AM - 3 Likes   #4188
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QuoteOriginally posted by Martin G. Quote
I would go for a 2,8/50mm macro, well I did - on the crop that's a 75mm so good for portraits, but also details, landscape and compact enough for a "walking around lens". The thing about the 1,8/50 or the old 1,4 or 1,7/50 is, that you usually go down to at least f2.8 to get better results and to f5.6 to get the best - with the macro you are already ok to use it wide open.
I love the 50 macro as a do everything walk around lens on both APS-c and FF.
But putting my DA*55 1.4 through it's paces last night I got this one shot where, the flower was big enough I didn't need macro capability, the subject detail was course enough I didn't need ƒ4 or 5.6 for sharpness, the flower was quite flat, meaning shallow DoF wouldn't be a problem, and the light was subdued enough I could shoot wide open without ND filters.

It doesn't happen often, this was the only one of 6 bracketed tripod sets where the 1.4 was the best image, but it certainly adds something different to your photography when the stars align.



Using the lens at ƒ2, 3 were judged to be the best, so, an ƒ1.8 lens would have done those.







The other two were best at 5.6




On this shoot, shooting with a 2.8 macro, only 2 out of the 6 best images would have been possible. I would have left 4 off the images I judged best on the table. Of course I was selecting subjects that would work with the lens I was shooting with, but within those narrow parameters, 5 out of six would have been possible with an ƒ 1.8 lens. But, I quite like the 1.4 image. Life is full of trade offs. Shooting with a 2.8 macro, I could have taken images of the many smaller flowers that I passed on because of the limited minimum focussing distance of the lens, that I would have had with the 2.8 macro.

Picking your first prime, you really are deciding which set of limitations is most acceptable. I'd go for a macro first (in my case a used Tamron 90 macro, a fantastic lens at a fantastic price but whatever you get, if you just get one, you're going to be missing out on some stuff.

What you need more than a lens is a good acquisition strategy, so the primes you select cover all the areas you think are important. You can do general with zooms, primes are better for specific needs.

Last edited by normhead; 09-05-2018 at 01:07 PM.
08-16-2018, 10:45 AM   #4189
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QuoteOriginally posted by normhead Quote
I love the 50 macro as a do everything walk around lens on both APS-c and FF.
But putting my DA*55 1.4 through it's paces last night I got histone shot where, the flower was big enough I didn't need macro capability, the subject detail was course enough I didn't need 4 or 5.6 for sharpness, the flower was quite flat, meaning shallow DoF wouldn't be a problem, and the light was subdued enough I could shoot wide open without ND filters.

It doesn't happen often, this was the only one of 6 bracketed tripod sets where the 1.4 was the best image, but it certainly adds something different to your photography when the stars align.



Using the lens at 2, 3 were judged to be the best, so, an 1.8 lens would have done those.







The other two were best at 5.6




On this shoot, shooting with a 2.8 macro, only 2 out of the 6 best images would have been possible. I would have left 4 off the images I judged best on the table. Of course I was selecting subjects that would work with the lens I was shooting with, but within those narrow parameters, 5 out of six would have been possible with an 1.8 lens. But, I quite like the 1.4 image. Life is full of trade offs. Shooting with a 2.8 macro, I could have taken images of the many smaller flowers that I passed on because of the limited minimum focussing distance of the lens, that I would have had with the 2.8 macro.

Picking your first prime, you really are deciding which set of limitations is most acceptable. I'd go for a macro first (in my case a used Tamron 90 macro, a fantastic lens at a fantastic price but whatever you get, if you just get one, you're going to be missing out on some stuff.

What you need more than a lens is a good acquisition strategy, so the primes you select cover all the areas you think are important. You can do general with zooms, primes are better for specific needs.
thank you, Norm.... but it's been three years since I had started this thread...

08-16-2018, 11:59 AM - 1 Like   #4190
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QuoteOriginally posted by pepperberry farm Quote
thank you, Norm.... but it's been three years since I had started this thread...
Oh dear...

Maybe it will be relevant to someone, the universe works in mysterious ways.
08-16-2018, 12:17 PM - 1 Like   #4191
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Sumatran Tiger at the Topeka Zoo and Conservation Center

K 3 II + SMC Pentax-D A 40mm F2.8 Limited
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08-16-2018, 02:26 PM - 1 Like   #4192
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Well the pictures on this thread are all very enjoyable so just keep on keeping on

Dave
08-16-2018, 02:48 PM - 1 Like   #4193
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So, I almost bit on a Sigma 50mm f/2.8 Macro (1:1) that is being sold really cheap. But I talked myself out of it because I don't see the "pixie dust" that Pentax lenses have (and I think my SMC-M 50 f4 Macro is one of those). I might instead get an extension tube set for my M 50 f4 Macro to get it to go 1:1.

What do my prime-loving pentaxian friends think? Should I still get that Sigma? Or just save for one of the 100mm f/2.8 macros? But those usually don't go for cheap...

08-16-2018, 03:54 PM   #4194
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Hi Christian

I have none of what you are contemplating but remember LBA is king

Dave
08-16-2018, 04:55 PM - 1 Like   #4195
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QuoteOriginally posted by ChristianRock Quote
So, I almost bit on a Sigma 50mm f/2.8 Macro (1:1) that is being sold really cheap. But I talked myself out of it because I don't see the "pixie dust" that Pentax lenses have (and I think my SMC-M 50 f4 Macro is one of those). I might instead get an extension tube set for my M 50 f4 Macro to get it to go 1:1.

What do my prime-loving pentaxian friends think? Should I still get that Sigma? Or just save for one of the 100mm f/2.8 macros? But those usually don't go for cheap...


can't help about the Sigma 50 macro, but I know the D FA 50 macro produces shots that are simply stunning...

I'm considering either a D FA 100 macro (non-WR) or a Sigma 105mm macro right now....
08-16-2018, 04:57 PM - 1 Like   #4196
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QuoteOriginally posted by pepperberry farm Quote
can't help about the Sigma 50 macro, but I know the D FA 50 macro produces shots that are simply stunning...

I'm considering either a D FA 100 macro (non-WR) or a Sigma 105mm macro right now....
I really like my SMC Pentax-D FA 100mm F2.8 Macro


no experience with those other lenses
08-16-2018, 06:00 PM - 2 Likes   #4197
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Moon in a thunderstorm

Just went out on my porch to listen to the pouring rain and thunder overhead and the moon looked pretty cool so I snapped about 30 images that I liked a bit.
First one is SOOC and cropped others are PP in DxO and have at least 1 stop of lightening. DFA 100 WR.
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08-16-2018, 06:03 PM   #4198
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QuoteOriginally posted by normhead Quote
Oh dear...

Maybe it will be relevant to someone, the universe works in mysterious ways.
no worries, Norm

good advice is always relevant - one of my first primes was my SMC A 100mm f4 Macro and it's still a beauty of a lens...
08-16-2018, 08:52 PM   #4199
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QuoteOriginally posted by SSGGeezer Quote
Just went out on my porch to listen to the pouring rain and thunder overhead and the moon looked pretty cool so I snapped about 30 images that I liked a bit.
First one is SOOC and cropped others are PP in DxO and have at least 1 stop of lightening. DFA 100 WR.
Hi Ssggeezer

They come out ok
The moon had a red tinge to it Tuesday night

Dave
08-16-2018, 09:31 PM - 1 Like   #4200
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QuoteOriginally posted by ChristianRock Quote
So, I almost bit on a Sigma 50mm f/2.8 Macro (1:1) that is being sold really cheap. But I talked myself out of it because I don't see the "pixie dust" that Pentax lenses have (and I think my SMC-M 50 f4 Macro is one of those). I might instead get an extension tube set for my M 50 f4 Macro to get it to go 1:1.

What do my prime-loving pentaxian friends think? Should I still get that Sigma? Or just save for one of the 100mm f/2.8 macros? But those usually don't go for cheap...
I would get some KA extension tubes whatever. My K ones do not work with the green button but the KA ones do. The 13mm and 21mm are particularly useful with my K 55mm f1.8 and would be similarly so on a with any K, M , A or FA 50mm. With the F4 macro you will lose a stop or 2 . Interestingly the KA tubes only work with some DA lenses - the DA 35 f2.4 and my recently acquired Sigma Ex DG 30mm f1.4, but not the DA 50 f1.8 . Third party extension tubes are cheap so you can still save for your 100mm.:
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