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**pepperberry farm** · 10-19-2017, 02:57 AM

earlier in the afternoon

**ivanvernon** · 10-19-2017, 04:43 AM - **1 Like**

Couple of landscapes around our house in the country of northern Ohio. Taken in late afternoon light.

KIT: K-1 with Pentax-A 645 55mm f 3.5. The 55mm becomes a 43mm FOV equivalent on the K-1 full frame camera.

ChristianRock · 10-19-2017, 07:37 AM

Originally posted by ivanvernon

Couple of landscapes around our house in the country of northern Ohio. Taken in late afternoon light.

KIT: K-1 with Pentax-A 645 55mm f 3.5. The 55mm becomes a 43mm FOV equivalent on the K-1 full frame camera.

Actually, no... it becomes a 43mm equivalent in the 645D/645Z cameras. It's also a 34mm equivalent in the film 645 cameras.

In the K-1, it's a 55mm, period. There is no "crop factor" in 35mm(135) format. Whatever focal length it is, that is what it is in the K-1.

**ivanvernon** · 10-19-2017, 10:40 AM - **2 Likes**

Originally posted by ChristianRock

Actually, no... it becomes a 43mm equivalent in the 645D/645Z cameras. It's also a 34mm equivalent in the film 645 cameras.

In the K-1, it's a 55mm, period. There is no "crop factor" in 35mm(135) format. Whatever focal length it is, that is what it is in the K-1.

My syntax was a little garbled. Here it is quite clear: The Pentax-A 645 55mm lens when used on the Pentax 645D camera provides a field of view of 53/44 degrees. That field of view is approximately the same field of view provided by the Pentax-FA 43mm limited when used on a full-frame camera.

**pepperberry farm** · 10-20-2017, 04:39 AM

wild garlic, going to seed...

**paulh** · 10-20-2017, 01:33 PM - **2 Likes**

Tamron Adaptall-2 02B (28/2.5)

**pepperberry farm** · 10-20-2017, 03:17 PM - **4 Likes**

**pepperberry farm** · 10-20-2017, 05:11 PM - **2 Likes**

**paulh** · 10-21-2017, 07:21 AM - **1 Like**

Super Tak 28/3.5

**pepperberry farm** · 10-22-2017, 04:13 AM - **1 Like**

red

**paulh** · 10-22-2017, 10:02 AM - **1 Like**

Again with the Super Tak 28/3.5 on *ist D:

**Scorpio71GR** · 10-22-2017, 07:18 PM - **4 Likes**

This is from earlier this month with the DFA 100 Macro WR on the K-1. I have a lot of post processing to catch up on.

**pepperberry farm** · 10-23-2017, 03:21 AM - **1 Like**

\

**pepperberry farm** · 10-23-2017, 03:22 AM - **2 Likes**

**paulh** · 10-23-2017, 11:09 AM

View through the brush...Tamron Adaptall-2 02B:

10-19-2017, 02:57 AM	#2311
pepperberry farm amateur dirt farmer Join Date: Dec 2014 Location: probably out in a field somewhere... Photos: Gallery \| Albums Posts: 41,781 Original Poster	K-3 with SMC A 50mm f1.4 earlier in the afternoon

10-20-2017, 04:39 AM	#2315
pepperberry farm amateur dirt farmer Join Date: Dec 2014 Location: probably out in a field somewhere... Photos: Gallery \| Albums Posts: 41,781 Original Poster	K-3 with SMC A 50mm f1.4 wild garlic, going to seed...

10-20-2017, 03:17 PM - 4 Likes	#2317
pepperberry farm amateur dirt farmer Join Date: Dec 2014 Location: probably out in a field somewhere... Photos: Gallery \| Albums Posts: 41,781 Original Poster	K-3 with SMC A 50mm f1.4

10-20-2017, 05:11 PM - 2 Likes	#2318
pepperberry farm amateur dirt farmer Join Date: Dec 2014 Location: probably out in a field somewhere... Photos: Gallery \| Albums Posts: 41,781 Original Poster	K-3 with Sigma 28mm f1.8 EX DG

10-22-2017, 04:13 AM - 1 Like	#2320
pepperberry farm amateur dirt farmer Join Date: Dec 2014 Location: probably out in a field somewhere... Photos: Gallery \| Albums Posts: 41,781 Original Poster	K-3 with Sigma 28mm f1.8 EX DG red

10-19-2017, 07:37 AM	#2313
ChristianRock Pentaxian Join Date: Jul 2013 Location: People's Republic of America Photos: Gallery \| Albums Posts: 9,912	Originally posted by ivanvernon Couple of landscapes around our house in the country of northern Ohio. Taken in late afternoon light. KIT: K-1 with Pentax-A 645 55mm f 3.5. The 55mm becomes a 43mm FOV equivalent on the K-1 full frame camera. Actually, no... it becomes a 43mm equivalent in the 645D/645Z cameras. It's also a 34mm equivalent in the film 645 cameras. In the K-1, it's a 55mm, period. There is no "crop factor" in 35mm(135) format. Whatever focal length it is, that is what it is in the K-1.

10-19-2017, 10:40 AM - 2 Likes	#2314
ivanvernon Loyal Site Supporter Join Date: Oct 2012 Location: Medina, OH Photos: Albums Posts: 7,224	Originally posted by ChristianRock Actually, no... it becomes a 43mm equivalent in the 645D/645Z cameras. It's also a 34mm equivalent in the film 645 cameras. In the K-1, it's a 55mm, period. There is no "crop factor" in 35mm(135) format. Whatever focal length it is, that is what it is in the K-1. My syntax was a little garbled. Here it is quite clear: The Pentax-A 645 55mm lens when used on the Pentax 645D camera provides a field of view of 53/44 degrees. That field of view is approximately the same field of view provided by the Pentax-FA 43mm limited when used on a full-frame camera.

10-20-2017, 01:33 PM - 2 Likes	#2316
paulh Site Supporter Join Date: Sep 2010 Location: DFW Texas/Ventura County, CA Photos: Gallery \| Albums Posts: 33,319	Tamron Adaptall-2 02B (28/2.5)

10-21-2017, 07:21 AM - 1 Like	#2319
paulh Site Supporter Join Date: Sep 2010 Location: DFW Texas/Ventura County, CA Photos: Gallery \| Albums Posts: 33,319	Super Tak 28/3.5

10-22-2017, 10:02 AM - 1 Like	#2321
paulh Site Supporter Join Date: Sep 2010 Location: DFW Texas/Ventura County, CA Photos: Gallery \| Albums Posts: 33,319	Again with the Super Tak 28/3.5 on *ist D:

10-22-2017, 07:18 PM - 4 Likes	#2322
Scorpio71GR Loyal Site Supporter Join Date: Nov 2014 Location: Michigan Photos: Gallery \| Albums Posts: 6,037	This is from earlier this month with the DFA 100 Macro WR on the K-1. I have a lot of post processing to catch up on.

10-23-2017, 03:21 AM - 1 Like	#2323
pepperberry farm amateur dirt farmer Join Date: Dec 2014 Location: probably out in a field somewhere... Photos: Gallery \| Albums Posts: 41,781 Original Poster	K-3 with SMC A 50mm f1.4 \

10-23-2017, 03:22 AM - 2 Likes	#2324
pepperberry farm amateur dirt farmer Join Date: Dec 2014 Location: probably out in a field somewhere... Photos: Gallery \| Albums Posts: 41,781 Original Poster	K-3 with Sigma 28mm f1.8 EX DG

10-23-2017, 11:09 AM	#2325
paulh Site Supporter Join Date: Sep 2010 Location: DFW Texas/Ventura County, CA Photos: Gallery \| Albums Posts: 33,319	View through the brush...Tamron Adaptall-2 02B:

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